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  • 51.
    Borg, Cajsa
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    WordPress och innovations design: En semiotisk analys av prioriteringar inom innovativ webbpublicering.2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A study that examines how the term innovation is constructed by analyzing

    innovative websites. The factors that are most salient on the examined websites

    are analyzed within the web publishing tool WordPress, in order to identify the

    priorities of the tool's basic interface. The study identifies factors which are

    salient in innovative web publishing, and describes how they relate to the tool

    WordPress.

  • 52.
    Borglund, Erik AM
    et al.
    Mittuniversitetet, Institutionen för informationsteknologi och medier.
    Anderson, Karen
    Mittuniversitetet, Institutionen för informationsteknologi och medier.
    Sirkemaa, Seppo
    Turku School of Economics, Pori.
    Wahlberg, Olof
    Mittuniversitetet, Institutionen för samhällsvetenskap.
    Sandberg, Karl W
    Mittuniversitetet, Institutionen för informationsteknologi och medier.
    Business values of electronic records management in SMEs2009In: Proceedings of the 3rd European Conference on Information Management and Evaluation, Academic Conferences Limited , 2009, p. 51-58Conference paper (Other academic)
    Abstract [en]

    Electronic records management in Small and Medium Enterprises is a relatively new research area. It is difficult to find much on the SME and electronic record management in academic databases. In public organizations and in large enterprises the management of electronic records is now acknowledged as important for business support. Efficient records management is e.g. necessary for fulfilling requirements found in various legislation such as e.g. the Sarbanes-Oxley Act (SOX). The requirements for documentation in the ISO 9000, and the ISO 14000 series can be fulfilled if standards for records management are used.

    This paper aims to contribute further knowledge on the quality of records management in SMEs. The following research question has guided this research: How well do SMEs meet minimum ISO 15489 requirements for records management?

    The research has been carried out within a EU funded research program, where 4 SMEs from both Sweden and Finland have been studied using a qualitative research approach. The data have been collected from four SMEs through interviews. The analytical lens used in this research has been the international standard for Information and Documentation - Record Management: ISO 15489.

    The results show that electronic records are managed in a rather ad-hoc manner and that management is very dependent upon individuals, many of whom have little, if any, expertise or training in this area and no access to expert advice. One of the identified business values of well-managed electronic records is that the SME gains the opportunity to manage and benefit from their explicit knowledge and experience.

    This research shows that there are major obstacles to overcome before SMEs are able to fully adopt best practice in electronic records management. Many of these hindrances have their roots in a lack of appropriate strategies for records appraisal and that the SMEs have not followed the steps recommended in the ISO 15489 standard.

     

  • 53.
    Boskovic, Una
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    Videoscenografi – en kvalitativ studie om det digitala teknikskiftet inom scenkonstnärliga insitutioner2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I dagens medievana samhälle blir det allt vanligare att använda avancerad digital teknik

    inom scenkonstnärliga institutioner. Modern teknik möjliggör användandet av

    videoscenografi som ett scenografiskt element inom scenkonst. Det vanligaste är att

    projicera en förinspelad video, film eller ljus över scenen. Med djupintervjuer som

    metod var syftet att beskriva hur det digitala teknikskiftet inom olika scenkonstnärliga

    institutioner har sett ut samt att försöka förstå hur denna påverkan tagit sig uttryck.

    Avsikten var även att få reda på vad personer inom branschen kallar sig till yrket då det

    finns oklarheter kring benämningen. Studien har visat på att yrkesbenämningen som

    personer aktiva inom branschen väljer att använda är ett individuellt val som även beror

    på bakgrund och aktuella arbetsuppgifter. Vidare visar studien att användandet av

    videoteknik inom scenkonstnärliga institutioner är vanligare än vad vi tror och att

    branschen är ung och ännu inte har formaliserats. Videoscenografi i kombination med

    traditionella metoder är även något som förhöjer det konstnärliga uttrycket. Slutligen

    visar studien på att trots att tekniken fortfarande är dyr så används den allt mer då den

    underlättar processen i att flytta föreställningar mellan olika arenor då det inte krävs så

    mycket traditionell scenografi och rekvisita, vilket skapar ökad frihet till personer aktiva

    inom branschen. I framtiden kommer mer ny teknik att användas vilket kommer

    innebära att yrken som exempelvis dekormålare inte kommer behövas i samma

    utsträckning som förr.

  • 54.
    Brandt, Daniel
    et al.
    Dalarna University, School of Technology and Business Studies, Human Geography.
    Heldt, Tobias
    Dalarna University, School of Technology and Business Studies, Economics.
    Wikström, Daniel
    Dalarna University, School of Technology and Business Studies, Statistics.
    Potential research areas for big data in tourism2016In: Proceedings of the IFITTtalk@Östersund Workshop on Big Data & Business Intelligence in the Travel & Tourism Domain / [ed] Fuchs, M., Lexhagen, M. & Höpken, W., 2016Conference paper (Refereed)
  • 55.
    Broo, Emil
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Spider-Man, den moderna superhjälten: En komparativ analys av de två filmserier som gjorts om superhjälten Spider-Man under 2000-talet2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna uppsats har som syfte att analysera de två filmserierna om superhjälten Spider-Man

    som hittills gjorts i Hollywood och i superhjältegenren. De jämförs och olika element som

    berättelser, karaktärer, ton och stil ställs mot varandra, diskuteras och analyseras samt vad

    de har för slags betydelse i filmerna och hur det också påverkar karaktären och historien.

    Serietidningarna som filmerna är baserade på tas också med i analysen då de också

    påverkar historien, karaktärerna och filmernas ton och stil, bland annat tas element från

    serietidningen upp som filmskaparna tagit med i filmerna och hur det kommer sig

    diskuteras. Litteratur och fan-analyser lyfts fram för att stärka analysen samt kommentarer

    och intervjuer från filmskaparna som visar de val dem gjort för att gestalta karaktären

    Spider-Man och den värld som han befinner sig i.

    Mitt resultat är att båda filmskaparna försöker gestalta karaktären på ett rättvist sätt genom

    att gestalta karaktärens personlighet rätt men också den värld som kretsar omkring honom

    men det görs på två väldigt olika tillvägagångssätt. Både när det gäller det narrativa

    berättandet och tonen och stilen på filmerna. Men det finns också en del likheter i filmerna,

    bland annat att de båda tar med element från serietidningarna för att tillfredsställa fansen

    till Spider-Man. Samtidigt har de båda filmerna olika toner och stilar i sitt berättande som

    förändrats genom åren.

  • 56.
    Broström, Gustav
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    Musikaliska kännetecken i Max Martins produktioner2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna uppsats undersöker olika musikaliskt hörbara kännetecken som är specifika i Max

    Martins produktioner. Musikaliska kännetecken refererar till hörbara kännetecken i den här

    uppsatsen och kommer att beröra formen på verket, tonart, rytm, frasindelningar, sångens

    dynamik, melodin och känslan som artisten framför i sången. Först analyseras tre

    produktioner producerade och skrivna av Max Martin och sedan jämförs de med tre stycken

    produktioner som är producerade och skrivna av andra producenter och låtskrivare. Analysen

    sker genom en så kallad ljudhändelsebeskrivning för att få fram material som går att jämföras

    och det sker med hjälp av den komparativa metoden. I resultatet går det tydligt att se

    musikaliskt hörbara kännetecken som är specifika i Max Martins produktioner. Det går även

    att se vilka musikaliskt hörbara kännetecken som är gemensamma för alla inspelningar som

    har analyserats i uppsatsen.

  • 57. Brännström, Mattias
    et al.
    Westin, Jerker
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Classification of structural timber by decision trees: a comparison to the certified method2009In: Forest products journal, ISSN 0015-7473, Vol. 59, no 3, p. 53-61Article in journal (Refereed)
    Abstract [en]

    This work is an example of how to adapt a classification method, in this case a classification tree, to the present standardized method for the development of settings for strength grading machines. Data from commercially available industrial strength grading equipment were used on a large sample (approximately 1440 pieces) of Norway spruce (Picea abies (L. Karsten)) in various sawn dimensions. The equipment is a multisensor scanning device combining planar X-ray and resonance frequency measurement. Destructive testing was done according to European standard EN408. The goal was to make the classification, based on machine data, as close as possible to the optimum grading, which was done according to standard. Two different approaches for classification by cost-sensitive decision trees were applied to the data and compared to classification accredited according to EN14081. Classification accuracy increased from 64% correctly classified to 73%, and a reduction from 33% False Negative to 23% was achieved. False Positive increased from 3% to 4%. The outcome was an increase in value for the producer by 0.9%–2.1% at 2007 average price level. The improvement came mainly from an in-yield increase in C30 by 10%.

  • 58.
    Byström, Eric
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Karaktärer, fördjupning och förändring: En studie i filmexempel om karaktärsfördjupning och karaktärsförändring i klassisk dramaturgi.2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna

    uppsats

    syfte

    är

    att

    studera

    funktionen

    och

    uppfattningen

    av

    karaktärsfördjupning

    och

    karaktärsförändring

    i

    klassisk

    dramaturgi.

    Den

    mest

    påtagliga

    uppfattning

    om

    dessa

    två

    begrepp

    är

    att

    de

    fungerar

    i

    samband

    med

    varandra.

    En

    karaktär

    i

    en

    film

    som

    inte

    fördjupas

    kan

    inte

    heller

    förändras

    och

    en

    film

    med

    en

    oföränderlig

    karaktär

    är

    en

    tråkig

    sådan.

    I

    granskningar

    av

    protagonisterna

    i

    filmerna

    My

    Dinner

    with

    Andre

    (1982),

    Die

    Hard

    (1988)

    och

    Doubt

    (2008)

    går

    det

    att

    se

    användningar

    av

    dessa

    begrepp

    som

    utmanar

    denna

    uppfattning.

    Filmerna

    påvisar

    olika

    grader

    av

    samband

    mellan

    karaktärsfördjupning

    och

    karaktärsförändring

    men

    gör

    detta

    sätt

    som

    inte

    helt

    stämmer

    överens

    med

    hur

    de

    i

    dagens

    mer

    tillgängliga

    litteratur

    behandlas.

    Det

    är

    relevant

    att

    öppna

    upp

    dagens

    dialog

    om

    hur

    dessa

    begrepp

    ska

    bearbetas

    i

    klassisk

    dramaturgi.

    Dessa

    filmer

    och

    deras

    respektive

    protagonister

    utgör

    karaktärer

    som

    både

    bekräftar

    och

    går

    emot

    det

    som

    idag

    talas

    som

    normalitet.

  • 59.
    Bäckström Tegner, Anna
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Den enfaldige demonen: En uppsats om demoniska antagonister i skräckfilmer2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den här vetenskapliga uppsatsen vill försöka reda ut hur vi blir skrämda av skräckfilm där

    antagonisten kan kopplas till religionen. Övernaturliga inslag förekommer i många skräckfilmer

    men det är filmer med kristendomen som lösning som den här uppsatsen intresserar sig för.

    Syftet är att ta reda på vad det är som är skrämmande i skräckfilmer som riktar in sig på

    kristendomens antagonister d.v.s. demoner.

    Genomförandet av uppsatsen sker med hjälp av en semiotisk bildanalys, där man försöker

    reda ut och tolka vad man ser och vad det har för betydelse. I det här fallet vad det vi ser i filmen

    har för betydelse som skrämselfaktor. Jag har analyserat tre olika filmer i samma tema för att

    försöka komma underfund med vad de försöker säga, vad budskapet i dem är och vad det är i

    dem som gör att publiken blir skrämd. Drivpunkten i den här uppsatsen är att reda ut

    anledningen till varför vi konsumerar skräckfilm och hur vi egentligen blir skrämda. En generell

    slutsats jag gjort är att dessa typer av filmer måste ge oss någon form av tillfredställelse och vi

    måste ha en drift att söka den, annars skulle denna filmgenre och berättargrepp inte överleva

    och expandera.

  • 60.
    Camacho Andersson, Emil
    et al.
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Karlsson, Jonathan
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Effekter av Internet of Things: Scenariobaserad studie som beskriver inledande effekter av Internet of Things i en verksamhet2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The term "Internet of Things" refers to when an object from the real world becomes a part of the internet. Tunabyggen in Borlänge plans to implement an information system that will monitor temperature and humidity in selected facilities using a constant internet connection and different sensors. It is a simple system that doesn't seem to have a major impact on the current operations. The economic effects is often possible to calculate in advance, but the impact on staff, environment and routines may be forgotten.

    We have with this thesis examined the initial effects that may occur after the implementation of a new information system with Internet of Things functionality in a business, within the categories of economy, working environment, environmental impact and system management.

    To answer this we made a case study which is based on a scenario methodology that consists of four phases. Phase 1, where we got our case and created an understanding of the scenario field. Phase 2, identifying the key factors. It has been done through a literature study and interviews with relevant staff on Tunabyggen. Phase 3, where the analysis of these key factors were made through the situation and future analysis. Phase 4, where we generate scenarios of the analyzed key factors. Finally we have done a SWOT analysis to highlight the strengths, weaknesses, opportunities and threats.

    The results clearly show signs that there will be many effects for Tunabyggen after the implementation of the new information system, which manifests itself in all categories. The conclusion is that even the implementation of a menial information system like this one, the impacts are many. This is something that we believe should be considered by all companies that are thinking of acquiring a new system so they do not only evaluate IT-systems in economic terms, but also other factors that play a crucial role for the implementation of an information system to be successful.

  • 61.
    Camacho Andersson, Jonatan
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Molntjänster för utvecklings- och testverksamhet i krisberedskapsmyndigheter2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Molntjänster har blivit ett intressant fenomen i IT-världen. Molntjänster har skapat möjligheter för företag och individer att effektivisera sin verksamhet för en minimal avgift istället för att driftsätta egna servrar. Detta blir möjligt genom att erbjuda flera olika tjänster på varierande distributionsmodeller. Till följd av detta fenomen förekommer serviceförfrågningar av molntjänster kontinuerligt bland svenska privata företag och myndigheter. De privata företagen har ingen skyldighet att följa lagar som begränsar dem från att använda molntjänster, i motsats till krisberedskapsmyndigheterna och deras utvecklings- och testverksamhet. Detta examensarbete kommer fokusera på att analysera de möjligheter som finns för svenska krisberedskapsmyndigheters och deras utvecklings- och testverksamheter att använda molntjänster

    Examensarbetet genomfördes som en kvalitativ studie med hjälp av intervjuer och litteraturstudier som datainsamlingsmetoder. Intervjuerna genomfördes på anställda i en krisberedskapsmyndighet för att ge en bild av hur dessa anställda med varierande befattningar tolkar molntjänster samt dess för- och nackdelar. Litteraturstudien användes för att spegla andra nationers synpunkter på molntjänster i myndigheter, samt vilka svenska lagar och regelverk som kan förhindra molntjänster i en krisberedskapsmyndighet.

    Resultatet av examensarbetet visade att det existerar möjligheter för användning av molntjänster i en krisberedskapsmyndighet. Detta görs möjligt genom att analysera informationen som skall distribueras på en molntjänst.

  • 62.
    Carling, Kenneth
    Dalarna University, School of Technology and Business Studies, Microdata Analysis.
    On leading and making data-driven decisions, or not2019In: Developing Informed Intuition for Decision Making / [ed] Jay Liebowitz, Taylor & Francis Group, 2019, p. 161-173Chapter in book (Refereed)
    Abstract [en]

    In this chapter, I consider the cognitive biases arising in judgment under uncertainty that jeopardize good decision-making aligned with normative decision theories. This problem raises objections towards intuitive and fast decision-making. It would be appealing if training could be devised for reducing the biases, and I argue that such training is feasible. I relate best-practice in such training and advocate a number of topics to be included in such training for good, intuitive decision-making skills.

  • 63.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Human Geography.
    Does Euclidean distance work well when the p-median model is applied in rural areas?2012In: Annals of Operations Research, ISSN 0254-5330, E-ISSN 1572-9338, Vol. 201, no 1, p. 83-97Article in journal (Refereed)
    Abstract [en]

    The p-median model is used to locate P centers to serve a geographically distributed population. A cornerstone of such a model is the measure of distance between a service center and demand points, i.e. the location of the population (customers, pupils, patients, and so on). Evidence supports the current practice of using Euclidean distance. However, we find that the location of multiple hospitals in a rural region of Sweden with anon-symmetrically distributed population is quite sensitive to distance measure, and somewhat sensitive to spatial aggregation of demand points.

  • 64.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Human Geography.
    Methodological issues in applying Location Models to Rural areas2010Report (Other academic)
    Abstract [en]

    Location Models are usedfor planning the location of multiple service centers in order to serve a geographicallydistributed population. A cornerstone of such models is the measure of distancebetween the service center and a set of demand points, viz, the location of thepopulation (customers, pupils, patients and so on). Theoretical as well asempirical evidence support the current practice of using the Euclidian distancein metropolitan areas. In this paper, we argue and provide empirical evidencethat such a measure is misleading once the Location Models are applied to ruralareas with heterogeneous transport networks. This paper stems from the problemof finding an optimal allocation of a pre-specified number of hospitals in alarge Swedish region with a low population density. We conclude that the Euclidianand the network distances based on a homogenous network (equal travel costs inthe whole network) give approximately the same optimums. However networkdistances calculated from a heterogeneous network (different travel costs indifferent parts of the network) give widely different optimums when the numberof hospitals increases.  In terms ofaccessibility we find that the recent closure of hospitals and the in-optimallocation of the remaining ones has increased the average travel distance by 75%for the population. Finally, aggregation the population misplaces the hospitalsby on average 10 km.

  • 65.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Information Systems. Dalarna University, School of Technology and Business Studies, Human Geography.
    Var ska sjukhusen ligga?2013In: Ekonomiska samfundets tidskrift, ISSN 0013-3183, E-ISSN 2323-1378, no 3, p. 165-171Article in journal (Refereed)
    Abstract [sv]

    Denna artikel visar på en metod för att undersöka hur optimal befolkningens fysiska tillgänglighet till sjukvården är. Detta är relevant med tanke på den svenska storregionala omdaningen som säkerligen kommer provocera fram omprövningar av sjukhusens framtida placering.

    Med Dalarna som exempel fann vi att en ökning från dagens två till tre optimalt lokaliserade sjukhus skulle minska befolkningens genomsnittliga reseavstånd med 25 %.

    På basis av transportsektorns standardkalkyler för samhällsekonomisk effekter vid resande, samt av kostnader för drift av sjukvård sluter vi dessutom oss till att en komplettering av nuvarande två sjukhus i Dalarna med ett tredje vore samhällsekonomiskt effektivt.

  • 66.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Information Systems. Dalarna University, School of Technology and Business Studies, Human Geography.
    Meng, Xiangli
    Dalarna University, School of Technology and Business Studies, Statistics.
    Rudholm, Niklas
    Dalarna University, School of Technology and Business Studies, Economics. HUI Research.
    Measuring CO2 emissions induced by online and brick-and-mortar retailing2014Report (Other academic)
    Abstract [en]

    We develop a method for empirically measuring the difference in carbon footprint between traditional and online retailing (“e-tailing”) from entry point to a geographical area to consumer residence. The method only requires data on the locations of brick-and-mortar stores, online delivery points, and residences of the region’s population, and on the goods transportation networks in the studied region. Such data are readily available in most countries, so the method is not country or region specific. The method has been evaluated using data from the Dalecarlia region in Sweden, and is shown to be robust to all assumptions made. In our empirical example, the results indicate that the average distance from consumer residence to a brick-and-mortar retailer is 48.54 km in the studied region, while the average distance to an online delivery point is 6.7 km. The results also indicate that e-tailing increases the average distance traveled from the regional entry point to the delivery point from 47.15 km for a brick-and-mortar store to 122.75 km for the online delivery points. However, as professional carriers transport the products in bulk to stores or online delivery points, which is more efficient than consumers’ transporting the products to their residences, the results indicate that consumers switching from traditional to e-tailing on average reduce their CO2 footprints by 84% when buying standard consumer electronics products. 

  • 67.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Information Systems. Dalarna University, School of Technology and Business Studies, Human Geography.
    Meng, Xiangli
    Dalarna University, School of Technology and Business Studies, Statistics.
    Rudholm, Niklas
    Dalarna University, School of Technology and Business Studies, Economics. HUI Research.
    Measuring CO2 emissions induced by online and brick-and-mortar retailing2014Report (Other academic)
    Abstract [en]

    We develop a method for empirically measuring the difference in carbon footprint between traditional and online retailing (“e-tailing”) from entry point to a geographical area to consumer residence. The method only requires data on the locations of brick-and-mortar stores, online delivery points, and residences of the region’s population, and on the goods transportation networks in the studied region. Such data are readily available in most countries, so the method is not country or region specific. The method has been evaluated using data from the Dalecarlia region in Sweden, and is shown to be robust to all assumptions made. In our empirical example, the results indicate that the average distance from consumer residence to a brick-and-mortar retailer is 48.54 km in the studied region, while the average distance to an online delivery point is 6.7 km. The results also indicate that e-tailing increases the average distance traveled from the regional entry point to the delivery point from 47.15 km for a brick-and-mortar store to 122.75 km for the online delivery points. However, as professional carriers transport the products in bulk to stores or online delivery points, which is more efficient than consumers’ transporting the products to their residences, the results indicate that consumers switching from traditional to e-tailing on average reduce their CO2 footprints by 84% when buying standard consumer electronics products. 

  • 68.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Human Geography.
    Rebreyend, Pascal
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    An empirical test of the gravity p-median model2012Report (Other academic)
    Abstract [en]

    A customer is presumed to gravitate to a facility by the distance to it and the attractiveness of it. However regarding the location of the facility, the presumption is that the customer opts for the shortest route to the nearest facility.This paradox was recently solved by the introduction of the gravity p-median model. The model is yet to be implemented and tested empirically. We implemented the model in an empirical problem of locating locksmiths, vehicle inspections, and retail stores ofv ehicle spare-parts, and we compared the solutions with those of the p-median model. We found the gravity p-median model to be of limited use for the problem of locating facilities as it either gives solutions similar to the p-median model, or it gives unstable solutions due to a non-concave objective function.

  • 69.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Han, Mengjie
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Human Geography.
    Rebreyend, Pascal
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Distance measure and the p-median problem in rural areas2012Report (Other academic)
    Abstract [en]

    The p-median model is used to locate P facilities to serve a geographically distributed population. Conventionally, it is assumed that the population patronize the nearest facility and that the distance between the resident and the facility may be measured by the Euclidean distance. Carling, Han, and Håkansson (2012) compared two network distances with the Euclidean in a rural region witha sparse, heterogeneous network and a non-symmetric distribution of thepopulation. For a coarse network and P small, they found, in contrast to the literature, the Euclidean distance to be problematic. In this paper we extend their work by use of a refined network and study systematically the case when P is of varying size (2-100 facilities). We find that the network distance give as gooda solution as the travel-time network. The Euclidean distance gives solutions some 2-7 per cent worse than the network distances, and the solutions deteriorate with increasing P. Our conclusions extend to intra-urban location problems.

  • 70.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Håkansson, Johan
    Dalarna University, School of Technology and Business Studies, Human Geography.
    Short Communication: A compelling argument for the gravity p-median model2012Report (Other academic)
    Abstract [en]

    The p-median model is used to locate P facilities to serve a geographically distributed population. Conventionally, it is assumed that the population always travels to the nearest facility. Drezner and Drezner (2006, 2007) provide three arguments on why this assumption might be incorrect, and they introduce the extended the gravity p-median model to relax the assumption. We favour the gravity p-median model, but we note that in an applied setting, Drezner and Drezner’s arguments are incomplete. In this communication, we point at the existence of a fourth compelling argument for the gravity p-median model.

  • 71.
    Carling, Kenneth
    et al.
    Dalarna University, School of Technology and Business Studies, Statistics.
    Meng, Xiangli
    Dalarna University, School of Technology and Business Studies, Statistics.
    On statistical bounds of heuristic solutions to location problems2014Report (Other academic)
    Abstract [en]

    Solutions to combinatorial optimization problems, such as problems of locating facilities, frequently rely on heuristics to minimize the objective function. The optimum is sought iteratively and a criterion is needed to decide when the procedure (almost) attains it. Pre-setting the number of iterations dominates in OR applications, which implies that the quality of the solution cannot be ascertained. A small, almost dormant, branch of the literature suggests using statistical principles to estimate the minimum and its bounds as a tool to decide upon stopping and evaluating the quality of the solution. In this paper we examine the functioning of statistical bounds obtained from four different estimators by using simulated annealing on p-median test problems taken from Beasley’s OR-library. We find the Weibull estimator and the 2nd order Jackknife estimator preferable and the requirement of sample size to be about 10 being much less than the current recommendation. However, reliable statistical bounds are found to depend critically on a sample of heuristic solutions of high quality and we give a simple statistic useful for checking the quality. We end the paper with an illustration on using statistical bounds in a problem of locating some 70 distribution centers of the Swedish Post in one Swedish region. 

  • 72.
    Carlsson, Alexandra
    et al.
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Tängerfors, Daniel
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Framtagning av Rockmotion Films visuella identitet2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The use of moving pictures has become far more common. Since more people

    use moving pictures it has become more important for film producers to

    distinguish themselves from their competitors with a visual identity. This study

    has been conducted in collaboration with Rockmotion Film HB, a company

    specialized in making videos for music and entertainment businesses. Since the

    beginning Rockmotion Film have been missing a complete visual identity

    which for a company is necessary to be seen as serious.

    The purpose with this study was to create a new visual identity and redesign the

    existing logotype based on Rockmotion Film’s core values and vision. The

    study began with a semi-structured interview with the company to gather

    necessary information about the company. In addition, a visual content analysis

    was made to gain perception of the competitors' visual identities. Through

    surveys and a focus group, the produced material has been tested to obtain a

    final suggestion.

    The result of this thesis is a simple and catching visual identity that complies

    with the core values, personal, youthful and professional as well as the client's

    vision of the visual identity.

  • 73.
    Carlsson, Caroline
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Förändringar i berättelsen från bok till film: En jämförelse mellan de viktigaste scenerna i boken Cirkeln och dess filmadaption2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Uppsatsens syfte är att jämföra boken Cirkeln och dess filmadaption med samma namn för att undersöka hur filmens ändringar kan påverka berättelsen för, de eventuellt, nästkommande filmerna. I slutdiskussionen kommer uppsatsen även att diskutera vilken sorts adaption filmen kan ses som utifrån Geoffrey Wagners tre adaptionstyper. Först kommer berättelsernas första vändpunktsscen att jämföras med varandra för att belysa skillnaderna mellan de två scenversionerna. Därefter kommer andra viktiga scener i berättelserna att jämföras på samma sätt. Dessa undersökningar kommer att använda Richard J. Hands analysmetod för att jämföra scenerna och ta reda på vad som har förändrats, behållits eller tagits bort under adaptionsprocessen. Jämförelserna utgår främst från de skillnader som skett i filmen, men nämner även likheter som uppsatsen anser vara viktiga. Sist kommer dessa skillnader att diskuteras, framförallt de konsekvenser som förändrar filmens berättelse mest och därefter vilken adaptionstyp filmen kan ses som på grund av dessa skillnader.

  • 74.
    Carlsson, Johan
    et al.
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Viking, Jakob
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Kreativitet under stress: En studie i att vara kreativ på beställning2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A graphic designer must be able to create and produce regardless of conditions. The

    present study addresses what impact short and long deadlines have on this

    ability and how creativity can be encouraged in stressful situations. Semistructured

    interviews were conducted with eight Art and Creative directors in

    GävleDala region to examine how they felt about being creative under stressful

    conditions. The results showed that there is generally not a problem for the

    interviewees to be creative on demand, but they do not follow any specific

    methods to ease the workflow. It was also found that it was rather the

    workload and the amount of assignments that affect the stress factor rather than

    a specific time frame.

  • 75.
    Carlsson, Niclas
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    Bubbliga reklamfilmer: En kvalitativ undersökning hur ljud och bild samarbetar i Coca Cola och Ramlösas reklamfilmer2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Idag är konkurrens en del av vardagen för företag som vill sälja sina produkter. I och

    med att utbudet ökar och varorna är så lika varandra så har det blivit viktigare att synas

    genom reklam. Den här uppsatsen kommer att fokusera på hur ljud och bild samarbetar i

    reklamfilm. Genom semistrukturerade intervjuer kommer personerna att få göra

    lyssningstest och bildtest för att sedan svara på frågor. Syftet är att försöka ta reda på

    om någon del är viktigare än den andra eller vad som kan göra skillnader i

    reklamfilmen. I reklamfilm så finns det någon form av budskap, men det kräver att den

    som ser förstår koderna som skaparen har använt. Studien har visat att det kan vara

    många olika typer av koder i reklamfilmer. Men om inte personen som ser det kan tolka

    dem rätt kan effekten bli det omvända.

  • 76.
    Cederlund, Harald
    et al.
    SLU, Institutionen för mikrobiologi.
    Fogelberg, Fredrik
    Institutet för jordbruks- och miljöteknik (JTI).
    Hansson, David
    SLU, Institutionen för biosystem och teknologi.
    Nyberg, Roger G.
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Schroeder, Håkan
    SLU, Institutionen för landskapsarkitektur, planering och förvaltning.
    Utveckling av metod för att bedöma behovet av ogräsbekämpning i spår2014Report (Other academic)
    Abstract [en]

    A system for weed management on railway embankments that is both adapted to the environment and efficient in terms of resources requires knowledge and understanding about the growing conditions of vegetation so that methods to control its growth can be adapted accordingly. Automated records could complement present-day manual inspections and over time come to replace these. One challenge is to devise a method that will result in a reasonable breakdown of gathered information that can be managed rationally by affected parties and, at the same time, serve as a basis for decisions with sufficient precision. The project examined two automated methods that may be useful for the Swedish Transport Administration in the future: 1) A machine vision method, which makes use of camera sensors as a way of sensing the environment in the visible and near infrared spectrum; and 2) An N-Sensor method, which transmits light within an area that is reflected by the chlorophyll in the plants. The amount of chlorophyll provides a value that can be correlated with the biomass. The choice of technique depends on how the information is to be used. If the purpose is to form a general picture of the growth of vegetation on railway embankments as a way to plan for maintenance measures, then the N-Sensor technique may be the right choice. If the plan is to form a general picture as well as monitor and survey current and exact vegetation status on the surface over time as a way to fight specific vegetation with the correct means, then the machine vision method is the better of the two. Both techniques involve registering data using GPS positioning. In the future, it will be possible to store this information in databases that are directly accessible to stakeholders online during or in conjunction with measures to deal with the vegetation. The two techniques were compared with manual (visual) estimations as to the levels of vegetation growth. The observers (raters) visual estimation of weed coverage (%) differed statistically from person to person. In terms of estimating the frequency (number) of woody plants (trees and bushes) in the test areas, the observers were generally in agreement. The same person is often consistent in his or her estimation: it is the comparison with the estimations of others that can lead to misleading results. The system for using the information about vegetation growth requires development. The threshold for the amount of weeds that can be tolerated in different track types is an important component in such a system. The classification system must be capable of dealing with the demands placed on it so as to ensure the quality of the track and other pre-conditions such as traffic levels, conditions pertaining to track location, and the characteristics of the vegetation. The project recommends that the Swedish Transport Administration: Discusses how threshold values for the growth of vegetation on railway embankments can be determined Carries out registration of the growth of vegetation over longer and a larger number of railway sections using one or more of the methods studied in the project Introduces a system that effectively matches the information about vegetation to its position Includes information about the growth of vegetation in the records that are currently maintained of the track’s technical quality, and link the data material to other maintenance-related databases Establishes a number of representative surfaces in which weed inventories (by measuring) are regularly conducted, as a means of developing an overview of the long-term development that can serve as a basis for more precise prognoses in terms of vegetation growth Ensures that necessary opportunities for education are put in place

  • 77.
    Cederquist, Joakim
    et al.
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Ryberg, Marcus
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Kulturens betydelse för filmtrailers: En kvalitativ analys av en trailers komponenter och dess inverkan på en filminsatt publik2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna uppsats är att redogöra för en trailers komponenter samt att analysera en amerikansk och en svensk trailer utifrån dessa för att förstå skillnaderna mellan dem och hur en filminsatt publiks intresse påverkas av komponenterna. De trailers vi valde var till filmerna Odödliga och Wild. För att få en mer trovärdig uppsats genomförde vi två stycken kvalitativa fokusgruppsintervjuer med filminsatta högskolestudenter. De komponenter vi valt var auditiva och visuella komponenter som fyller meningsskapande funktion så som klippning, musik, bildutsnitt, kamerarörelser och dialog etcetera. Resultatet vi fick var att trailrarna inte skiljde sig så mycket åt men att dess komponenter påverkade intresset hos deltagarna till en viss grad. Vi fann att deltagarnas personliga smak samt tidigare associationer och erfarenheter har större påverkan för deras intresse. Dessutom fann vi att den svenska trailerns kulturella aspekt påverkade deltagarnas intresse negativt då de flesta hade en förbestämd kritisk inställning till svensk film, trots att denna film hade många likheter med den amerikanska filmen. Slutsatsen vi kom fram till var att filmens kulturella aspekt har en större påverkan för publikens intresse att se filmen än de komponenter vi valt att analysera.

  • 78.
    Christoffersson, Einar
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    RoboDrummer – A Case Study: Implications of the musical expression of an electromechanical drumming machine2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In search for a new musical expression, the author’s own creation; RoboDrummer (RD)

    – a newly invented, MIDI-controlled electromechanical, drumming machine – is closely

    analyzed in terms of sound, time and interaction, and then compared to its precursors;

    the human drummer, the drum machine & other robotic drummers. Although far from a

    robotic virtuoso, the findings show in what unique ways RD both de-humanizes the

    human drum performance and humanizes, as well as embodies, the virtual drum

    machine. Potential musical applications and technical improvements are suggested to

    further develop RD into a more engaging and futuristic live performance.

  • 79.
    Claesson, Christoffer
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Penetrationstest mot Webbapplikation2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Penetrationstest har blivit en populär metod för organisationer att se datasäkerheten ur en angripares ögon och ofta inkluderas både system och personal av ett penetrationstest.Rapporten går igenom attackerna SQL Injection, Cross-site Scripting (XSS) och Cross-site Request Forgery (CSRF) som är specifikt för webbapplikationer och även förslag på hur man kan motverka dessa. Syftet med studien är att kontrollera om företagets webbapplikation läcker information, eller om en användare kan komma förbi autentisering eller uppgradera sina rättigheter i webbapplikationen. Vidare beskrivs även vilka verktyg som används för att inhämta information för fortsatta analyser. Diskussionen kan användas som underlag för att skapa en säkrare webbapplikation. Rapporten avslutas med en indikering om att företaget har god säkerhet, fast även ytterligare underlag för framtida undersökningar. En exekutiv sammanställning av arbetet, se Bilaga 1.

  • 80.
    Claesson, David
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    Elgitarr i studion och hemmet: Skillnaden mellan emuleringar och mikrofonljud2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I denna uppsats undersöks upplevelsen och den soniska skillnaden mellan

    högtalarelement inspelade med mikrofon och emuleringar. Da emuleringar har blivit ett

    populärt sätt att ersätta gitarrförstärkare och högtalarlada undersöker denna uppsats de

    soniska och hörbara skillnader mellan de tva. Lyssningspanelen och de tekniska

    mätningarna visar bada att det finns en skillnad mellan de tva, i diskanten upplevs den

    största skillnaden. Det gar att dra tydliga likheter med den tidigare forskning som gjorts

    inom liknande omraden och denna uppsats, undersökningen stärker till stor del den

    forskning som tidigare gjorts.

  • 81.
    Dahne, Lovisa
    et al.
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Matthis, Alexi
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    Det klassiska berättandet i det moderna Sverige: En kvalitativ analys av den moderna svenskproducerade filmens användning av det klassiska berättandets dramaturgi2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna vetenskapliga undersökning är att studera vilka element av det klassiska berättandets dramaturgi som går att finna i sex stycken olika svenskproducerade långa spelfilmer. Filmerna är uppdelade i två olika grupper, kritikerrosade och biosuccéer, dessa har valts ut med hjälp av statistik från Svenska Filminstitutet. Analysen fokuserar främst på två nyckelbegrepp, protagonisten och treaktsstrukturen, som båda definieras och sedan analyseras i vardera film.

    Efter analysen görs sedan jämförelser, både film mot film men även grupp mot grupp, för att besvara frågan om det finns skillnader mellan användandet av det klassiska berättandet i svenskproducerade kritikerrosade filmer och biosuccéer. Det bakomliggande syftet är att förstå hur denna konventionella berättarstruktur används i praktiken i Sverige. Undersökningen finner dock att skillnaderna mellan grupperna är mycket små och enbart en film kommer nära definitionen av det klassiska berättandet. Genomgående för filmerna är att de övriga inte har en tydlig protagonist eller huvudkonflikt, vilket i de flesta filmer resulterar i en otydlig treaktsstruktur. Detta pekar på att svenskproducerade lång spelfilmer verkar prioritera andra berättarstrukturer eller medel för att skapa intresse hos publiken.

  • 82.
    Dalberg, Daniel
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Client-side security for anonymous data collection from handsets2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The widespread use of smartphones today, and the hardware available in these smartphones should make it possible to use these devices as a foundation for digital guides at, for example, tourist attractions with a historical connection. This report examines whether it is possible to create an Android application for smartphones that functions as a digital guide. Furthermore an attempt to delete sensitive data, in this case location data from the volatile memory on a smartphone running Android, is done. It turns out that a smartphone can be used as a foundation for a digital guide as long as the area that is to be covered by the guide is located in an area that is covered by the mobile networks and that it is possible to communicate with the GPS system. Deleting all the sensitive data from the volatile memory however, is more or less impossible.

  • 83.
    Dalén, Julia
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Bilderbokens grafiska formgivning: En visuell innehållsanalys av bokomslag och typuppslag ur framgångsrika bilderböcker för barn i Sverige2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A literature search showed that there was a considerable amount

    of published

    sources in the category picture books, among others, but fewer who reviewed

    the graphic design of successful picture books and that gathered knowledge

    about which similarities they had.

    The purpose of this thesis has therefore been to examine how the graphic design

    in successful picture books looks like in Sweden, between the years 2008 and

    2017, and gather knowledge about which similarities there are and which design

    elements that occur more frequently than others.

    The goal with the project has in addition to this been to gather knowledge about

    the design process, what recommendations there are for the target group and

    exemplify common design elements in a picture book prototype.

    The conclusion is that there are similarities between successful picture books

    and that there are more frequently occurring design elements then others. This

    conclusion can however only be based on the books that have been concluded in

    this study during a given time period.

  • 84.
    Davidsson, Ida
    Dalarna University, School of Humanities and Media Studies, Sound and Music Production.
    Tituleringsproblematik inom det samtidskonstnärliga audiovisuella området: Intervjuer med audiovisuella utövare om upplevd tituleringsproblematik2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Uppsatsen ämnar undersöka tituleringsproblematiken inom det konstnärliga

    audiovisuella området. Detta har undersökts genom kvalitativa intervjuer med

    audiovisuella utövare som är aktiva inom det specifika området. Tidigare forskning

    visar att teknologins utveckling de senaste 20 åren har bidragit till framväxten av fler

    genrer inom det audiovisuella området vilket i sin tur har resulterat i en begrepps- och

    terminologiproblematik. Teorin som används för att analysera det empiriska materialet

    tar ansats från socialkonstruktivismen. Resultatet visar att audiovisuella utövare

    upplever att det inte finns något tydligt sätt att titulera sig. De mönster som visade sig i

    respondenternas svar var att tituleringen försvåras i och med att en audiovisuell utövare

    sysselsätter sig inom flera områden och titeln anpassas därefter, beroende på

    sammanhanget, det visade sig även att en generell och övergripande titel är svår att

    uppnå då den audiovisuella utövaren ofta möts av publik eller besökare som inte är

    bekanta med det audiovisuella begreppet.

  • 85.
    Dawidowski, Jakob
    et al.
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Brykt, Mattias
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Taligenkänningsprogram på en tågledningscentral: En studie om införande av taligenkänning på en tågledningscentralur ett tekniskt och socialt perspektiv2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Speech recognition is a technology still under development and the main reason is that human language is a complex phenomenon. With the development and progress in the AI-field, speech recognition has reached new heights. Previous research in this field has shown that some speech recognition softwares have achieved a 0.5 % margin of error. The purpose of this paper is to investigate how the sound environment at a train control center affects the quality of speech to text transcription and the pros and cons of using this technology in a train control center. This study is a descriptive case study with an experiment in which the data has been generated by interviews, observations as well as collected documents. The results from the study were that the operating environment affected the speech to text transcription in a negative way. The pros which emerged were that speech to text enables transcription in real-time as well as the possibility to digitize information. The cons were user acceptance, finding speech recognition applications and the noisy environment at the train control center.

  • 86.
    Dellestrand, August
    et al.
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Lundin, Tobias
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Applikationsövervakning: Dess möjliga bidrag till en verksamhet2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Application monitoring is a term for real-time monitoring of applications to be able to discover faults before they reach the end-user. Application monitoring does not only mean the individual software but also everything surrounding it, which can have an impact on the application. Trafikverket wishes to deliver high quality in their applications. At present the developers have no or little insight in how an application delivers in a live environment after they handed over the responsibility to the operations. In order to maintain a good quality of their applications they want to explore how application monitoring may help to see changes in the needs of applications before major problems occur. In a case study consisting of interviews and document studies and through situation based FA/SIMM present ways of working will be produced. It will also identify wishes/concerns expressed by the developers and operations departments in the managing of existent applications. These will then be analyzed to examine in which way application monitoring would help developers, but also operations, in their work. The result shows that the problems which are brought forward are in a sense organizational of nature and that DevOps is a possible way for solution. But also that application monitoring could contribute to the delivery of high quality in applications in a proactive manor.

  • 87.
    Dougherty, Mark
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Something old, something new, something borrowed, something blue part 1: Alan turing, hypercomputation, adam smith and next generation intelligent systems2012In: Journal of Intelligent Systems, ISSN 0334-1860, Vol. 21, no 4, p. 325-330Article in journal (Refereed)
    Abstract [en]

    In this article intelligent systems are placed in the context of accelerated Turing machines. Although such machines are not currently a reality, the very real gains in computing power made over previous decades require us to continually reevaluate the potential of intelligent systems. The economic theories of Adam Smith provide us with a useful insight into this question. © de Gruyter 2012.

  • 88.
    Dougherty, Mark
    et al.
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Westin, Jerker
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Slutrapport för projektet E-MOTIONS2013Report (Other academic)
  • 89.
    Dridi, Amel
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Professionen testare i DevOps: En fallstudie på ett IT-konsultföretag2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    When system development is based on traditional development methods, a gap

    between development and operation occurs. DevOps is a clipped compound of

    Development and Operation and is a software engineering practice designed to

    reduce the gap between development and operation. DevOps combined with one

    of the most important phases of system development, which is the test phase,

    makes it interesting to explore what changes a traditional tester is facing when

    transitioning to DevOps.

    The purpose of this study is to describe how an IT consulting company applies

    DevOps and also gain an understanding of what role the profession testers have in

    DevOps.

    The study is based on the following questions:

    - How does an IT consulting company work with DevOps?

    - What role does the profession testers have in DevOps?

    In order to respond to this, this study has been conducted where the research

    strategy case study has been applied. The specific case in the study is to focus on

    the IT consulting company Sogeti and their enforcement of DevOps. Interviews

    and document studies have been used to collect data. A literature study has also

    been made to get an overview of previous studies in the field. The results of the

    survey contribute knowledge of DevOps and what role the profession testers have

    in DevOps. The result indicates that DevOps is an enforcement focusing on

    cooperation and communication between multidisciplinary teams and a drive to

    automate more in order to frequently deliver software. Isolated skills in testing is

    seen as a challenge and limitation, DevOps advocates not only multidisciplinary

    teams but also multidisciplinary knowledge.

  • 90. Du, X.
    et al.
    Song, William Wei
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Conceptual graph: an approach to improve quality of business services modeling2016In: International Journal of Web Services Research, ISSN 1545-7362, E-ISSN 1546-5004, Vol. 13, no 2, p. 20-45Article in journal (Refereed)
    Abstract [en]

    Business development or renovation is to introduce newer, more efficient routines and processes through redesign or re-engineering of businesses, which form a set of business patterns. Business patterns encapsulate the best solutions for business practices and tasks confirming business strategies of the enterprise. Nowadays, services with SOA (Service oriented-Architecture) become more and more important in implementing and supporting business routines and processes. An enterprise that can encapsulate their SOA solutions into patterns will make the business more agile and effective. However, with the SOA solutions to automation of locating relevant instance services for its business patterns with minimum human intervention, one has to look into the semantic and operational difference between the description of a business pattern and that of an instance service - a gap between the two levels of descriptions. In this paper, the authors introduce a conceptual modelling method to address how to bridge the gap, by a semantic service description for usage contextual approach formalized with the conceptual graphs formalism. Most importantly, they evaluate this model in this paper to study its usability in practice. 

  • 91.
    Du, X.
    et al.
    British Telecom.
    Song, William Wei
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Munro, M.
    Durham University.
    CbSSDF and OWL-S: A Scenario-Based Solution Analysis and Comparison2011In: Information Systems Development: Asian experiences, Springer Science+Business Media B.V., 2011, p. 3-14Chapter in book (Refereed)
    Abstract [en]

    To tackle the semantic issues of web services, we proposed a comprehensive semantic service description framework – CbSSDF – and a two-step service discovery mechanism based on CbSSDF to help service users to easily locate their required services. In this chapter, we evaluate the framework by comparing it with OWL-S to examine how the proposed framework can improve the efficiency and effectiveness of service discovery and composition. The evaluation is done through analysing the different solutions proposed based on these two frameworks for achieving a series of tasks in a scenario.

  • 92. Du, Xiaofeng
    et al.
    Song, William Wei
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Conceptual graph: an approach to improve quality of business services modeling2014In: Web Information Systems Engineering - WISE 2013 workshops: Lecture notes in computer science, Berlin: Springer Berlin/Heidelberg, 2014, Vol. 8182, p. 239-251Conference paper (Refereed)
    Abstract [en]

    Business development or renovation is to introduce newer, more efficient routines and processes through redesign or re-engineering of businesses, which form a set of business patterns. Business patterns encapsulate the best solutions for business practices and tasks confirming business strategies of the enterprise. Nowadays, services with SOA (Service oriented-Architecture) become more and more important in implementing and supporting business routines and processes. An enterprise that can encapsulate their SOA solutions into patterns will make the business more agile and effective. However, with the SOA solutions to automation of locating relevant instance services for its business patterns with minimum human intervention one has to look into the semantic and operational difference between the description of a business pattern and that of an instance service-a gap between the two levels of semantic descriptions. In this paper, we propose a conceptual modeling method to address how to bridge the gap, by a semantic service description for usage contextual approach formalized with the conceptual graphs formalism.

  • 93.
    Du, Xiaofeng
    et al.
    British Telecommun PLC, London, England..
    Song, William Wei
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Quality improvement framework for business oriented geo-spatial data2015In: Web Information Systems Engineering - WISE 2014 workshops, Berlin: Springer Berlin/Heidelberg, 2015, Vol. 9051, p. 239-249Conference paper (Refereed)
    Abstract [en]

    In the past few years, Geo-spatial data quality has received increasing attention and concerns. As more and more business decisions are made based on data analytic result from geo-spatial related data, low quality data means wrong or inappropriate decisions, which could have substantial effects on a business's future. In this paper, we propose a framework that can systematically ensure and improve geo-spatial data quality throughout the whole life cycle of data.

  • 94.
    Du, Xiaofeng
    et al.
    University of Durham, UK.
    Song, William Wei
    University of Durham, UK.
    Munro, Malcolm
    University of Durham, UK.
    CbSSDF: A Two-Layer Conceptual Graph Approach to Web Services Description and Composition: A Scenario Based Solution Analysis and Comparison with OWL-S2011In: International Journal on Information System Modeling and Design, ISSN 1947-8186, Vol. 2, no 4, p. 82-103Article in journal (Refereed)
    Abstract [en]

    Web services as a new distributed system technology have been widely adopted by industries in the areas, such as enterprise application integration (EAI), business process management (BPM), and virtual organization (VO). However, lack of semantics in the current Web service standards has become a major barrier in service discovery and composition. To tackle the semantic issues of Web services, this paper proposes a comprehensive semantic service description framework – CbSSDF and a two-step service discovery mechanism based on CbSSDF—to help service users to easily locate their required services. The authors give a detailed explanation of CbSSDF, and then evaluate the framework by comparing it with OWL-S to examine how the proposed framework can improve the efficiency and effectiveness of service discovery and composition. The evaluation is carried out by analysing the different proposed solutions based on these two frameworks for achieving a series of tasks in a scenario.

  • 95.
    Duvander, Emil
    Dalarna University, School of Humanities and Media Studies, Moving Image Production.
    300: Statiska rörelser: En jämförelse av rörelser i serieboken och filmen 300 2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Idag blir det allt vanligare att filmskapare gör film av tecknade serier. För att lyckas med en adaption finns det många aspekter att ta hänsyn till.

    Syftet med denna uppsats är att undersöka hur filmskaparna till filmen 300 har förhållit sig till rörelserna i serieboken med samma namn.

    Undersökningen jämför scener ur filmen med serieboken utifrån hur trogna filmskaparna har förhållit sig till originalet.

    Det framkom att det finns skillnader mellan serien och filmen 300. Bilderna och rörelserna i serien är ofta överdrivna för att de lättare ska kunna tolkas av läsaren. I filmen är rörelserna inte lika överdrivna för att filmen ska upplevas verklig. Filmens bildberättande är också mera logisk i sina riktningar vilket gör det lättare för publiken att följa med i berättelsen.

    Att vara trogen till originalet är viktigt i en adaption. Filmen skiljer sig en del från serien men många rörelser liknar dem som visas i serieboken. Detta visar att även om serie och film har ett gemensamt huvudberättande i bilder så finns det faktorer som gör att adaptioner mellan medier måste anpassas och förändras.

  • 96.
    Ekholm, Emma
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Undersökning av modeller för utvärdering av tidseffektivitet inom användbarhet: Teoretisk genomgång och praktikfall2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Many studies conducted reveal that there are shortcomings in the usability of healthcare information systems. The question is if the usability of IT is adapted to the needs of the user. These shortcomings lead to that the doctors' and other healthcare personnel use of time and resources are not used in an optimal way.

    The purpose of this thesis is to investigate and compare the different evaluation models in usability that can also evaluate time efficiency in an information system's user interface. First I will make a theoretical review of evaluation models to find one or more suitable evaluation models to measure time efficiency in usability. Then to try this or these evaluation models in a practical case. This is to see if the theoretical evaluation models have the ability to display time that can be saved in the usability of the health-related information systems.

    After comparison and evaluation of different evaluation models for usability, it becomes clear that there are several evaluation models that can be used in different ways to evaluate the time efficiency in usability.

    The results from this study show that there are opportunities to save time in health care related information systems.

  • 97.
    Ekman, Elin
    et al.
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Hansson, Maria
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Gratification by Gamification: Gamification som medel för att skapa en användbar applikation för synpunktshantering2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    It is challenging to motivate usage of IT services provided by government or public administration since the usage of such services is based on voluntariness. One way to incentivize usage is by making such services fun to use, which can be done by using gamification. Gamification is game-like elements in an otherwise non-game like service. This study aims to describe how gamification, from a usability perspective, can be used in a citizen report application. The strategy used in this study is design and creation where we develop an IT artefact that constitute a prototype. Hence, the method prototyping is used. Furthermore, usability is considered while developing this prototype. The scientific contribution of this study is the prototype itself, and insights on how to use gamification as a vehicle for usability. Two versions of the prototype were developed before tested by five focus groups, which added up to a total of 37 respondents. The focus groups answered a questionnaire and participated in a semi-structured group interview. The result of this was evaluated and used to improve the prototype and to find suggestions of how to implement gamification in the application. Our findings show that gamification can be implemented in the application and should be so by using a point system where the points can be cashed in for a reward of some sort. To counteract risks of vandalism the points should be handed out to the user after the suggestion in the report is considered and validated by the public administration providing the service. Gamification should be implemented to create satisfaction regarding usability. However, this study finds that accommodation of efficiency and effectiveness needs should be prioritized before satisfactory needs are implemented in the application.

  • 98.
    Eljas, Kalle
    et al.
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Johansson, Dan
    Dalarna University, School of Technology and Business Studies, Information Systems.
    En jämförelse av molnbaserade realtidsanalystjänster: Skillnader i användbarhet mellan multi-tenant och single-tenant arkitekturer2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Internet of Things is a collective term for a development which means that different types of units can be equipped with sensors and computer chips that are connected to the internet. An increased amount of data results in an increased demand for solutions that can store, track, analyze and process data. One way to solve this is to use cloud-based real-time analytics. Multi-tenant and single-tenant are two types of architectures for cloud-based real-time analytics services, which can be used to solve the problems that come with handling the increased data volumes. These architectures differ in terms of complexity of the development.

    In this report Azure Stream Analytics represents multi-tenant architecture while HDInsight/ Storm represent single-tenant architecture.

    In order to compare these different architectures, we have evaluated them by making use of three usability criteria: effectiveness, efficiency and user satisfaction. Based on these criteria, we wanted answers to the following questions:

    • What similarities and differences can we see in development times?

    • Can we identify differences in functionality?

    • What do developers think about the various analysis services?

    We have used a design and creation strategy to develop two artifacts. Then we collected data from the development using multiple data collection methods. We used observations to document how we worked with the development of the analytical services, and to measure development times and identify differences in functionality. We have also used questionnaires to find out what users thought of the real-time analysis services.

    The Proof of Concept prototypes consisted of two artifacts, one for Azure Stream Analytics and one for HDInsight/Storm. We evaluated them by performing five different scenarios, each of them had 2-5 different tasks. We simulated a data stream by creating an application that continuously generated random data that we analyzed with the two real-time analysis services.

    We came to the conclusion that Azure Stream analytics was initially more useful than HDInsight/Storm but the differences decreased gradually. Azure Stream Analytics was easier to work with during the simpler analyzes but HDInsight/Storm had a wider choice of functionality.

  • 99.
    Elmi, Mohamed
    et al.
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Johansson, Linus
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Gamification för peer formativ feedback: En fallstudie om hur gamification kan motivera studenter vid systemvetenskapliga programmet att ge varandra feedback.2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to find out what would motivate students to use a gamified platform to give each other formative feedback.

    The study is designed as a case study where the starting point of the study is the students' need for a possible common platform to facilitate each other's assistance in programming courses. But the study and subsequent results can also be applied to other courses. The use of both qualitative and quantitative data collection methods has been conducted, in the form of interviews and surveys as well as testing of a gamified platform.

    Since the collected data is of qualitative and quantitative nature, a mixture of thematic analysis to the qualitative data and a quantitative data analysis for the remaining quantitative data was also used. We have also evaluated a gamified platform against an existing framework.

    The literature studies are the basis for the definitions of the central concept of the study. The results of this study contribute to justifying whether a gamified platform is something that the students would like to see and use. Based on the students' attitude towards a gamified platform, a list of requirements has also been worked out.

    Something that has emerged from this study is that students are not motivated by a monetary reward. Instead, the motivation revolves around the ability to verify the knowledge for themselves and to take advantage of the opportunity to show off your skills.

  • 100.
    Emretsson, Emelie
    Dalarna University, School of Technology and Business Studies, Information Systems.
    Clean coding i team: En fallstudie om hur ett team går tillväga för att etablera ettgemensamt tankesätt som grundas i Clean codes riktlinjer2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Many of todays systems are made of code bases with low readability which leads to low

    maintainability. One reason to this is that developers of the system have different experience and

    knowledge in how to write code. When code is written in totally different ways it can create problems

    as the system grows and becomes more complex.

    Since 2015, Nethouse in Borlänge has managed a system called TRAP (Transportstyrelsens

    Administrative Process System). TRAP is built with different techniques and during the

    maintainability process a lot of problems has occured because of that. The technique in TRAP is about

    to be lifted and by doing this one part of the goal is to create a code base which is more easy to read

    and maintain compared to todays code base. To achieve this goal the plan is to establish a common

    mindset in the team. A common mindset which is based in a set of guidelines called Clean code.

    The purpose of this study is to describe how a team is working to establish a common mindset based

    in the guidelines of Clean code and to describe important factors to consider in this situation.

    Two research questions was used to achieve the purpose of this study:

    How is the team working today to establish a common mindset?

    Which factors can be considered as important when a common mindset is about to establish?

    A case study with the help of interviews and questionnaries was conducted to answer these two

    questions.

    The result shows that the team is using pair programming, mob programming and also code review to

    establish a common mindset. The result also shows that the four factors mutual trust, mutual

    performance monitoring, closed loop communication and method are more important to consider in

    this situation.

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