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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Automated Inclusive Design Heuristics Generation with Graph Mining

Sangelkar, Shraddha Chandrakant 16 December 2013 (has links)
Inclusive design is a concept intended to promote the development of products and environments equally usable by all users, irrespective of their age or ability. This research focuses on developing a method to derive heuristics for inclusive design. The research applies the actionfunction diagram to model the interaction between a user and a product, design difference classification to compare a typical product with its inclusive counterpart, graph theory to mathematically represent the comparison relations, and graph data mining to extract the design heuristics. The goal of this research is to formalize and automate the inclusive-design heuristics generation process. The rule generation allows statistical mining of the design guidelines from existing inclusive products. Formalization results show that, the rate of rule generation decreases as more products are added to the dataset. The automated method is particularly helpful in the developmental stages of graph mining applications for product design. The graph mining technique has capability for graph grammar induction, which is extended here to automate the generation of engineering grammars. In general, graph mining can be applied to extract design heuristics from any discrete and relational design data that can be represented as graphs. Concept generation studies are conducted to validate the heuristics derived in this research for inclusive product design. In addition, an inclusivity rating is created and verified to evaluate the inclusiveness of the conceptual ideas. Finally, appreciation and awareness about inclusive design is important in an engineering design course, hence, a module is compiled to teach inclusive design methods in a capstone design course. The results of the exploratory study and validation show that there is problem dependency in the application of the representation scheme. It cannot be stated with certainty at this point if the representation scheme is helpful for designing consumer products, where only the activities related to the upper body are involved. However, self-reported feedback indicates that the teaching module is effective in increasing the awareness and confidence about inclusive design.
2

Natural User Interface Design using Multiple Displays for Courier Dispatch Operations.

Clifford, Rory January 2013 (has links)
This thesis explores how Natural User Interface (NUI) interaction and Multiple Display Technology (MDT) can be applied to an existing Freight Management System (FMS), to improve the command and control interface of the dispatch operators. Situational Awareness (SA) and Task Efficiency (TE) are identified as being the main requirements for dispatchers. Based on studies that have been performed on SA and TE in other time critical occupations such as Emergency Medical Dispatch (EMD) and Air Traffic Control (ATC), a substitute dispatch display system was designed with focus on courier driver and freight management systems and monitoring. This system aims to alleviate cognitive overheads without disrupting the flow of the existing CFMS by providing extended screen area matched with a natural input mechanism for command and control functionality. This Master’s thesis investigates which of commercial state-of-the-art interface tools is best to use in a wide Field-of-View (FOV) multiple screen display and to dicern if there is any practical impact that a proposed NUI system will have to courier dispatching. To assess the efficacy of such a hypothetical system the author has developed an experimental prototype that combines a set of three monitors in a Multi-Monitor System to create the overall display system, accompanied with two traditional and two advanced NUI direct and indirect interaction techniques (mouse, trackpad, touch screen and gesture controller). Experiments using the prototype were conducted to determine the optimum configuration for control/display interface based upon task effectiveness, bandwidth and overall user desirability of these methods in supporting behavioural requirements of dispatch workstation task handling. The author use the well-studied and robust Fitts' Law for measuring and analysing user behaviour with NUIs. Evaluation of the prototype system finds that the multi-touch system paired with the multi-monitor system was the most responsive of the interaction techniques, direct or indirect. Based on these findings, employing such an interaction system is a viable option for deployment in FMS's. However for optimal efficiency, the firmware that supports the interactivity dynamics should be re-designed so it is optimized to touch interaction. This will allow the multi-touch system to be used effectively as an affordance technology. Although the gesture interaction approach has a lot of potential as an alternative NUI device, the performance of gesture input in this experimental setting had the worst performance of all conditions. This finding was largely a result of the interface device limitation within the wide FOV display range of the multi-monitor system. Further design improvements and experimentation are proposed to alleviate this problem for the gesture tracking and for the touchscreen modalities of interaction.
3

Future-Proofing Accessibility in UX: Swedish Perspectives on the European Accessibility Act

Söderholm, Elin January 2024 (has links)
As digital interactions become increasingly integral to our daily routines, ensuring web accessibility for all users is crucial. User experience designers play a big role in creating online environments that are not only usable, but also informative and enjoyable. The European Accessibility Act is a new directive from the European Union, stating that certain products and services must be accessible by 2025, benefiting an estimated 87 million Europeans who have disabilities or temporary impairments. Previous research on Swedish websites has found that requirements are often not fulfilled when it comes to accessibility. This thesis investigated current accessibility practices among Swedish user experience (UX) designers and evaluated their preparedness for compliance with the European Accessibility Act. The results of the interviews show that the Act provides several motivating factors for improving accessibility measures in organizations. Through expert evaluations of the design practices, a set of guidelines is presented, aimed at providing guidance for companies and designers in creating an inclusive design culture while complying with the Act.
4

Från ax till limpa : Verksamhetsprocessen vid framtagande av applikationer till handdatorer på Fazer Bageri AB / <em>From ear to loaf </em> : <em>The organizational development process for application development for handheld computers at Fazer Bageri AB </em>

Lindquist, Jennie, Mikaela, Andersson January 2009 (has links)
<p>Human Computer Interaction (HCI) is a broad discipline that studies different concerns regarding interactive systems’ development. One of the major interest points within the discipline is the reasoning behind building specific functionality into computers and the long-term effects that usage of systems will have on humans.</p><p>Within Human Computer Interaction there are theories and frameworks how to involve a user in the process of developing new systems. In this paper focus is applied to the development process within developing applications for Enterprice Digital Assistants (EDA) and to what extent the end-users are involved in the process. Fazer Bageri AB has been choosen to represent a business corporation that uses handheld computers in their everyday tasks.</p><p>The method used to gather information for this study has been by performing interviews and observations with key stakeholders at Fazer Bageri AB and MobiOne AB. Fazer Bageri AB is the purchaser, customer and user of the handheld computer applications that MobiOne AB developed.</p><p>The result shows that the end-users were only involved in the end of the developing process. We found that one of the main reasons for this is that there are not any resources for supporting involvement of the end-users. Within user-centric design there are many aspects to consider, but one of the most prominently is to establish a mutual understanding by all persons involved in the project, from developers to end-users about the importance of involving users throughout the development. We also found that there is no routine established for securing that the information about different updates in the handheld computers reaches the end-users.</p><p>The development process demonstrates that Fazer Bageri AB uses a traditional system development philosophy rather than a user-centric system development philosophy.</p> / <p>Inom ämnet människa datorinteraktion handlar många metoder om hur man involverar användaren i framtagandet av nya system. I denna undersökning ville författarna ta reda på hur verksamhetsprocessen vid framtagande av systemapplikationer för handdatorer kan gå till och om användarna involveras i processen. Verksamhetsprocessen jämfördes sedan mot teorier inom området. Valet föll på att undersöka verksamhetsprocessen hos Fazer Bageri AB då vetskap fanns om att de har 350 chaufförer som använder handdatorer i sitt dagliga arbete. När man utvecklar för så många användare är det viktigt att ta med användaren tidigt i processen.</p><p>Metoderna som använts i undersökningen har varit strukturerade intervjuer och observationer. Respondenterna har varit nyckelpersoner inom Fazer Bageri AB och MobiOne AB. Fazer Bageri AB är beställare, kund och användare av de mobila applikationerna för handdatorer som MobiOne AB tillhandahåller och är experter på.</p><p>Resultatet visar att användarna i denna undersökning var involverade endast i slutet av processen, en orsak till detta tycks vara att det saknas resurser för att ersätta ytterligare involvering av användare. Med att ersätta menas i detta fall ekonomisk kompensation till chaufförerna för den extra arbetstid det skulle innebära att involveras i processen. En viktig aspekt inom användarcentrerad design är att säkerställa att samtliga involverade har samma uppfattning om det som skall göras eller vad som åstadkommits. Viktigt är därför att informationsflödet inom företagen fungerar för att samtliga skall ha möjlighet att ta del av arbetet. Informationsflödet mellan handdatoransvarig och slutanvändare hos Fazer Bageri AB kan verka tveksamt då det innefattar flera olika informationsled.</p><p>Verksamhetsprocessens olika faser som kartlagts skiljer sig delvis ifrån de teorier inom människa datorinteraktion som tagits del av inför denna undersökning. Detta beror till stor del på att Fazer Bageri AB har en traditionell systemutvecklingsfilosofi snarare än en användarcentrerad designfilosofi.</p>
5

Från ax till limpa : Verksamhetsprocessen vid framtagande av applikationer till handdatorer på Fazer Bageri AB / From ear to loaf : The organizational development process for application development for handheld computers at Fazer Bageri AB

Lindquist, Jennie, Mikaela, Andersson January 2009 (has links)
Human Computer Interaction (HCI) is a broad discipline that studies different concerns regarding interactive systems’ development. One of the major interest points within the discipline is the reasoning behind building specific functionality into computers and the long-term effects that usage of systems will have on humans. Within Human Computer Interaction there are theories and frameworks how to involve a user in the process of developing new systems. In this paper focus is applied to the development process within developing applications for Enterprice Digital Assistants (EDA) and to what extent the end-users are involved in the process. Fazer Bageri AB has been choosen to represent a business corporation that uses handheld computers in their everyday tasks. The method used to gather information for this study has been by performing interviews and observations with key stakeholders at Fazer Bageri AB and MobiOne AB. Fazer Bageri AB is the purchaser, customer and user of the handheld computer applications that MobiOne AB developed. The result shows that the end-users were only involved in the end of the developing process. We found that one of the main reasons for this is that there are not any resources for supporting involvement of the end-users. Within user-centric design there are many aspects to consider, but one of the most prominently is to establish a mutual understanding by all persons involved in the project, from developers to end-users about the importance of involving users throughout the development. We also found that there is no routine established for securing that the information about different updates in the handheld computers reaches the end-users. The development process demonstrates that Fazer Bageri AB uses a traditional system development philosophy rather than a user-centric system development philosophy. / Inom ämnet människa datorinteraktion handlar många metoder om hur man involverar användaren i framtagandet av nya system. I denna undersökning ville författarna ta reda på hur verksamhetsprocessen vid framtagande av systemapplikationer för handdatorer kan gå till och om användarna involveras i processen. Verksamhetsprocessen jämfördes sedan mot teorier inom området. Valet föll på att undersöka verksamhetsprocessen hos Fazer Bageri AB då vetskap fanns om att de har 350 chaufförer som använder handdatorer i sitt dagliga arbete. När man utvecklar för så många användare är det viktigt att ta med användaren tidigt i processen. Metoderna som använts i undersökningen har varit strukturerade intervjuer och observationer. Respondenterna har varit nyckelpersoner inom Fazer Bageri AB och MobiOne AB. Fazer Bageri AB är beställare, kund och användare av de mobila applikationerna för handdatorer som MobiOne AB tillhandahåller och är experter på. Resultatet visar att användarna i denna undersökning var involverade endast i slutet av processen, en orsak till detta tycks vara att det saknas resurser för att ersätta ytterligare involvering av användare. Med att ersätta menas i detta fall ekonomisk kompensation till chaufförerna för den extra arbetstid det skulle innebära att involveras i processen. En viktig aspekt inom användarcentrerad design är att säkerställa att samtliga involverade har samma uppfattning om det som skall göras eller vad som åstadkommits. Viktigt är därför att informationsflödet inom företagen fungerar för att samtliga skall ha möjlighet att ta del av arbetet. Informationsflödet mellan handdatoransvarig och slutanvändare hos Fazer Bageri AB kan verka tveksamt då det innefattar flera olika informationsled. Verksamhetsprocessens olika faser som kartlagts skiljer sig delvis ifrån de teorier inom människa datorinteraktion som tagits del av inför denna undersökning. Detta beror till stor del på att Fazer Bageri AB har en traditionell systemutvecklingsfilosofi snarare än en användarcentrerad designfilosofi.
6

Effektivitetsanalys och förbättringsstrategier på underhållssystem för tillverkande industrier / Efficiency analysis and improvement strategies for maintenance systems in manufacturing industries

Chabi, Marian, Durovic, Milena January 2024 (has links)
Den moderna tillverkningsindustrin är i ständig förändring för att möta kraven från samhället och marknaden. Industri 4.0 har introducerat en ökad digitalisering och automatisering, vilket kräver smidiga och effektiva system för inrapportering för att hantera den ökande komplexiteten. Integreringen av Manufacturing Execution Systems (MES) och Enterprise Resource Planning (ERP) möjliggör insamling och visualisering av realtidsdata för att optimera produktionsprocesserna. Trots detta möter industrier hinder vid implementering av ERP-system, vilket minskar potentialen för optimal användning. Dessa utmaningar inkluderar brist på noggrann analys och planering, otillräcklig användarutbildning samt systemutvecklares tendens att prioritera teknik- eller produktanpassning framför användaranpassning. Denna studie fokuserar på att identifiera problem vid implementering av ERP-system samt utforska strategier för att optimera systemets användning. Forskningsfrågan som denna studie bevarar är: Vilka faktorer är väsentliga vid implementering av ERP-system inom tillverkande industrier för att uppå en mer optimal användning och uppföljning? Studien genomförs på Scanias nya gjuteri och företagets störningsuppföljningssystem, EBBA. Med hjälp av empiriska data, i form av semistrukturerade intervjuer och observationer på gjuteriet, samt stödjande litteraturstudier har ett resultat framställts. En framgångsrik implementering av ERP-system kräver användarvänliga system, kontinuerlig utbildning, kommunikation, ständigt förbättringsarbete, engagerat ledarskap samt resurstillgänglighet. För ledande tillverkningsföretag som Scania AB, Volvo AB, Saab AB och Volvo Cars AB utgör ett effektivt inrapporteringssystem en central del för att förbättra produktionskapaciteten och stärka konkurrenskraften. Genom att möjliggöra optimal användning och störningsidentifiering kan företagen effektivisera tillverkningsprocesserna och förbättra kvaliteten på sina produkter. Detta bidrar även till den hållbara utvecklingen och de globala målen, till exempel SDG 8 “Anständiga arbetsvillkor och ekonomisk tillväxt”, SDG 9 “Hållbar industri, innovationer och infrastruktur" och SDG 12 “Hållbar konsumtion och produktion”. / The modern manufacturing industry is constantly changing to meet the demands of society and the market. Industry 4.0 has introduced increased digitization and automation, which requires smooth and efficient reporting systems to manage the growing complexity. The integration of Manufacturing Execution Systems (MES) and Enterprise Resource Planning (ERP) enables the collection and visualization of real-time data to optimize production processes. However, industries face obstacles in the implementation of ERP systems, which reduces the potential for optimal use. These challenges include a lack of thorough analysis and planning, insufficient user training, and a tendency among system developers to prioritize technological or product adaptation over user-centric design. This study focuses on identifying problems in ERP system implementation and exploring strategies to optimize system usage. The research question addressed in this study is: What factors are essential in the implementation of ERP systems in manufacturing industries to achieve a more optimal usage and follow-up? The study is conducted at Scania's new foundry and the company's disruption monitoring system, EBBA. Using empirical data from semi-structured interviews and observations at the foundry, along with supportive literature studies, a conclusion has been drawn. Successful ERP system implementation requires user-friendly systems, continuous training, communication, continuous improvement efforts, committed leadership, and resource availability. For leading manufacturing companies such as Scania AB, Volvo AB, Saab AB, and Volvo Cars AB, an efficient reporting system is essential to improve production capacity and enhance competitiveness. By enabling optimal usage and disruption identification, companies can streamline manufacturing processes and improve the quality of their products. This also contributes to sustainable development and global goals, such as SDG 8 "Decent Work and Economic Growth", SDG 9 "Industry, Innovation, and Infrastructure" and SDG 12 "Responsible Consumption and Production".

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