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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.
381

User Experience Design for Children : Developing and Testing a UX Framework / Användarupplevelsedesign för Barn : Utveckling och Testning av UX Ramverk

Bräne, Arvid January 2016 (has links)
Designing good digital experiences for children can be difficult; designers have to consider children's cognitive and motor skill limitations, understand their target audience, create something entertaining and educational, comply with national and international jurisdiction, and at the same time appeal to parents. We set out to create a general framework which designers and developers can use as a foundation and testing ground for their digital products in the field of user experience. The methods used during the thesis include interviews, literature studies, user testing, case studies, personas, prototyping, and more. The results created are primarily user experience guidelines packaged in a Theoretical Framework, user testing conclusions, along with suggestions on improving the current Lego Star Wars: Force Builders application, a few in the form of prototypes.
382

Virtual reality designprinciples: A casestudy on VRChat

Eckmann, Peter January 2024 (has links)
Virtual Reality is rapidly growing in popularity. This new medium offers manypossibilities for those who wish to explore what the technology provides in the 3Denvironment. However, the design principles that have been used for decades revolvearound 2D surfaces and applying them in the 3D space can cause severalincompatibility issues that diminishes the user experience.This study aimed to help highlight what aspects of virtual reality need to be improvedcompared to non-virtual reality platforms to enhance the user experience. To do this,VRChat, a virtual reality platform was chosen, which can be used by both VR, and nonVR headset users alike. By comparing these two user bases it could help highlight thepros and cons of the current system and help give guidelines on how to create futureVR platforms. During the test period, 58 people participated who did specific tasks onthe platform and filled out the quantitative data gathering survey, based on the UserExperience Questionnaire (UEQ) test.After comparing the two user bases, the result shows that there is no significantdifference between using VRChat either way allowing both user bases to enjoy theplatform equally. However, because of these results, the work failed to highlight whataspects of a VR platform need to be changed to fit the needs of VR headset users. Itimplies the need for further research and experimenting with the medium. In the future,further research, testing and experimentation are needed to improve the current designmodels and make the systems more pleasant for VR headset users.
383

Jämförelse av olika reglersystem för undervisningsändamål / Comparison of different systems for automatic control in education

Nord, Dennis January 2009 (has links)
<p>Examensarbetet syftar till att jämföra nya alternativ till olika system för användning i laborationer i reglerteknikkurser för olika studentkategorier. Det skall utredas vilket av ett antal alternativ till mjukvaruplattformar som är bäst lämpat att användas vid reglerteknikundervisningen i ITN:s reglerlaboratorium vid Linköpings universitet. Tidigare laborationer i berörda kurser skall även modifieras så att dessa kan genomföras i de nya systemen.</p><p>Examensarbetet resulterade i en rad modifierade laborationer och system att tillämpa i dessa. De nya systemen medför att all reglering sköts direkt från en dator istället för tidigare variant med externa apparater som programmeras. På så sätt kan större fokus läggas på regleringen i sig och inte de system som tillämpas för att utföra den.</p> / <p>The purpose of this thesis work is to compare new alternatives for different systems to use in laborations, in courses offered in control system design, for different types of students. The intention is to investigate which of a number of software platform alternatives are best suited for these purposes. Current laborations are to be modified to be viable in the new systems.</p><p>The project resulted in a number of modified laborations and control systems to use in these. The new solutions are made so that all of the control is done by one computer, as opposed to the previous solution where external units had to be programmed and controlled. This way, the laborations can focus more on the control theory and less on the systems used to realize it.</p>
384

Bewegungssteuerungen auf Basis des Hybriden Funktionsplanes

Geitner, Gert-Helge 18 July 2013 (has links) (PDF)
Für ereignisgesteuerte Systeme mit mehrdimensionalen Bewegungsabläufen wurde im Fachausschuss 4.12 "Bewegungssteuerungen für Be- und Verarbeitungsmaschinen" der VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA) die VDI/VDE-Richtlinie 3684 "Beschreibung ereignisgesteuerter Bewegungsabläufe mit Funktionsplänen" als interdisziplinär verständliches und anschauliches Dokumentationsmittel und Entwurfswerkzeug erarbeitet. Mit der Blockbibliothek Funktionsplan auf Grundlage der in der Richtlinie 3684 vorgeschlagenen Systembeschreibung ist ein durchgängiger Entwurfsweg bis zur Überprüfung des Systemverhaltens ereignisgesteuerter Systeme mittels Simulation einschließlich frühzeitiger Erkennung von Fehlern im Entwurfsprozess und Kodegenerierung möglich. Die FUP Blockbibliothek liegt als Erweiterungs-Blockbibliothek für SIMULINK vor und wurde hinsichtlich ihrer wesentlichen Eigenschaften zur Simulation von ereignisgesteuerten Prozessen speziell in mechatronischen Systemen entwickelt. Die Blockikonen gewährleisten schon nach kurzer Einarbeitungszeit einen sicheren Einsatz der Blöcke, damit kann auf Blockkürzel im Sinne der Richtlinie zwecks besserer Übersichtlichkeit verzichtet werden. Zweisprachige Blockhilfen sind in Version 3.1 für alle Blöcke on-line verfügbar. Graphisch programmierte Funktionspläne können mittels Toolbox Funktionsplanprüfung vorzugsweise über GUI, bei Bedarf auch durch MATLAB Skripte, auf Eingabe- und Programmierfehler geprüft werden. Die Prüfung kann wahlweise vollständig oder auf ausgewählte Fehler erfolgen. Ergebnisausgaben sind entweder in gestraffter Form oder ausführlich einschließlich von Hinweisen möglich. Überprüft werden können Parameter (z.B. Zustands- u. FUP-Nummern, Variablen, Fehlerbehandlung), Syntax (vgl. Richtlinie), Sackgassen (erste/alle) und Rückführschleifen (Entkopplung). Hybride Funktionspläne sind in Echtzeitkode für eine Zielhardware übersetzbar. Voraussetzung ist ein Standard ANSI C Compiler. Die Blockbibliothek Funktionsplan ist eine kostengünstige, richtliniennahe Alternative und ermöglicht eine vom Normalablauf separate, graphisch programmierte Fehlerbehandlung ohne Verlust an Übersichtlichkeit. Die Anwendung der Blöcke wird durch 11 Beispiele veranschaulicht. / The department committee 4.12 "Motion control of machine tools and processing machines" of the VDI/VDE Society for Measurement and Automatic Control (GMA) has established a manufacturer-neutral guideline No. 3684 for event-driven systems with multi-dimensional motion sequences. This guide-line is entitled "Description of event-driven motion processes by function charts" and constitutes a graphically clear design and documentation tool that is well-suited for interdisciplinary application. The block library Function Chart has been defined based on system descriptions suggested in guideline 3684. This library makes available a uniform design procedure. It covers the documentation, the behaviour test of event-driven systems by means of simulation including the early detection of design process faults, the test of realization variants as well as the code generation. Block library Function Chart is an add-on library for SIMULINK. With regard to its essential features it has been developed for the design, simulation, code generation and the description of event-driven systems especially for mechatronics, mechanical and electrical engineering. The created block icons make it possible to get familiar with add-on library Function Chart within a short period of time whereupon block mnemonics may be hidden in order to get a high graphical clearness and to fulfil the requirements of the guideline. Versions 3.1 bilingual on-line block help is available for all blocks. Graphically programmed function charts may be checked for input and programming errors preferably with help of Toolbox "Function Chart Check" by means of GUI's and if necessary also by MATLAB scripts. The check may be done completely or alternatively for selected errors. Output of result is possible either in detail inclusively eventual hints or in shortened form. A function chart may be checked for parameter errors (e.g. state and FUP numbers, variables, error handling), syntax errors (see guideline), dead ends (first or all) and uncoupled loops (arithmetic loops). Standard ANSI C compiler availability stands for a precondition for real time code generation. The block library Function Chart offers a reasonable alternative and allows separate motion error handling sequences which are separated from normal motion sequences without any loss of a well-ordered graphical arrangement. Currently 11 examples demonstrate the application of the blocks.
385

Jämförelse av olika reglersystem för undervisningsändamål / Comparison of different systems for automatic control in education

Nord, Dennis January 2009 (has links)
Examensarbetet syftar till att jämföra nya alternativ till olika system för användning i laborationer i reglerteknikkurser för olika studentkategorier. Det skall utredas vilket av ett antal alternativ till mjukvaruplattformar som är bäst lämpat att användas vid reglerteknikundervisningen i ITN:s reglerlaboratorium vid Linköpings universitet. Tidigare laborationer i berörda kurser skall även modifieras så att dessa kan genomföras i de nya systemen. Examensarbetet resulterade i en rad modifierade laborationer och system att tillämpa i dessa. De nya systemen medför att all reglering sköts direkt från en dator istället för tidigare variant med externa apparater som programmeras. På så sätt kan större fokus läggas på regleringen i sig och inte de system som tillämpas för att utföra den. / The purpose of this thesis work is to compare new alternatives for different systems to use in laborations, in courses offered in control system design, for different types of students. The intention is to investigate which of a number of software platform alternatives are best suited for these purposes. Current laborations are to be modified to be viable in the new systems. The project resulted in a number of modified laborations and control systems to use in these. The new solutions are made so that all of the control is done by one computer, as opposed to the previous solution where external units had to be programmed and controlled. This way, the laborations can focus more on the control theory and less on the systems used to realize it.
386

Bewegungssteuerungen auf Basis des Hybriden Funktionsplanes

Geitner, Gert-Helge January 2000 (has links)
Für ereignisgesteuerte Systeme mit mehrdimensionalen Bewegungsabläufen wurde im Fachausschuss 4.12 "Bewegungssteuerungen für Be- und Verarbeitungsmaschinen" der VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA) die VDI/VDE-Richtlinie 3684 "Beschreibung ereignisgesteuerter Bewegungsabläufe mit Funktionsplänen" als interdisziplinär verständliches und anschauliches Dokumentationsmittel und Entwurfswerkzeug erarbeitet. Mit der Blockbibliothek Funktionsplan auf Grundlage der in der Richtlinie 3684 vorgeschlagenen Systembeschreibung ist ein durchgängiger Entwurfsweg bis zur Überprüfung des Systemverhaltens ereignisgesteuerter Systeme mittels Simulation einschließlich frühzeitiger Erkennung von Fehlern im Entwurfsprozess und Kodegenerierung möglich. Die FUP Blockbibliothek liegt als Erweiterungs-Blockbibliothek für SIMULINK vor und wurde hinsichtlich ihrer wesentlichen Eigenschaften zur Simulation von ereignisgesteuerten Prozessen speziell in mechatronischen Systemen entwickelt. Die Blockikonen gewährleisten schon nach kurzer Einarbeitungszeit einen sicheren Einsatz der Blöcke, damit kann auf Blockkürzel im Sinne der Richtlinie zwecks besserer Übersichtlichkeit verzichtet werden. Zweisprachige Blockhilfen sind in Version 3.1 für alle Blöcke on-line verfügbar. Graphisch programmierte Funktionspläne können mittels Toolbox Funktionsplanprüfung vorzugsweise über GUI, bei Bedarf auch durch MATLAB Skripte, auf Eingabe- und Programmierfehler geprüft werden. Die Prüfung kann wahlweise vollständig oder auf ausgewählte Fehler erfolgen. Ergebnisausgaben sind entweder in gestraffter Form oder ausführlich einschließlich von Hinweisen möglich. Überprüft werden können Parameter (z.B. Zustands- u. FUP-Nummern, Variablen, Fehlerbehandlung), Syntax (vgl. Richtlinie), Sackgassen (erste/alle) und Rückführschleifen (Entkopplung). Hybride Funktionspläne sind in Echtzeitkode für eine Zielhardware übersetzbar. Voraussetzung ist ein Standard ANSI C Compiler. Die Blockbibliothek Funktionsplan ist eine kostengünstige, richtliniennahe Alternative und ermöglicht eine vom Normalablauf separate, graphisch programmierte Fehlerbehandlung ohne Verlust an Übersichtlichkeit. Die Anwendung der Blöcke wird durch 11 Beispiele veranschaulicht.:1. Einleitung 2. Ausgangspunkt Arbeitsdiagramm 3. Hybrider Funktionsplan 3.1 Begriffsbestimmung 3.2 Anwendungsbeispiel 3.3 Vom Arbeitsdiagramm zum Hybriden Funktionsplan 4. Steuerungstechnische Umsetzung 4.1 Auswahl einer Basissoftware 4.2 Maschinenkodeerzeugung mit der Basissoftware 5. Projektierung mit FUP 5.1 Eigenschaften der SIMULINK Blockbibliothek FUP 5.2 Projektierungsschritte 6. Ausblick / The department committee 4.12 "Motion control of machine tools and processing machines" of the VDI/VDE Society for Measurement and Automatic Control (GMA) has established a manufacturer-neutral guideline No. 3684 for event-driven systems with multi-dimensional motion sequences. This guide-line is entitled "Description of event-driven motion processes by function charts" and constitutes a graphically clear design and documentation tool that is well-suited for interdisciplinary application. The block library Function Chart has been defined based on system descriptions suggested in guideline 3684. This library makes available a uniform design procedure. It covers the documentation, the behaviour test of event-driven systems by means of simulation including the early detection of design process faults, the test of realization variants as well as the code generation. Block library Function Chart is an add-on library for SIMULINK. With regard to its essential features it has been developed for the design, simulation, code generation and the description of event-driven systems especially for mechatronics, mechanical and electrical engineering. The created block icons make it possible to get familiar with add-on library Function Chart within a short period of time whereupon block mnemonics may be hidden in order to get a high graphical clearness and to fulfil the requirements of the guideline. Versions 3.1 bilingual on-line block help is available for all blocks. Graphically programmed function charts may be checked for input and programming errors preferably with help of Toolbox "Function Chart Check" by means of GUI's and if necessary also by MATLAB scripts. The check may be done completely or alternatively for selected errors. Output of result is possible either in detail inclusively eventual hints or in shortened form. A function chart may be checked for parameter errors (e.g. state and FUP numbers, variables, error handling), syntax errors (see guideline), dead ends (first or all) and uncoupled loops (arithmetic loops). Standard ANSI C compiler availability stands for a precondition for real time code generation. The block library Function Chart offers a reasonable alternative and allows separate motion error handling sequences which are separated from normal motion sequences without any loss of a well-ordered graphical arrangement. Currently 11 examples demonstrate the application of the blocks.:1. Einleitung 2. Ausgangspunkt Arbeitsdiagramm 3. Hybrider Funktionsplan 3.1 Begriffsbestimmung 3.2 Anwendungsbeispiel 3.3 Vom Arbeitsdiagramm zum Hybriden Funktionsplan 4. Steuerungstechnische Umsetzung 4.1 Auswahl einer Basissoftware 4.2 Maschinenkodeerzeugung mit der Basissoftware 5. Projektierung mit FUP 5.1 Eigenschaften der SIMULINK Blockbibliothek FUP 5.2 Projektierungsschritte 6. Ausblick
387

Kdevelop und glade - die Programme-Bauer

Becher, Mike 21 March 2000 (has links)
Werkzeuge für Entwickler Eine Vielzahl von kleinen Helfern erleichtert den Programmierern die Arbeit. Neben make, configure und kommandozeilenorientierte Compiler treten mächtige Entwicklungswerkzeuge, mit denen sich in Windeseile Oberflächen erstellen lassen. In diesem Vortrag werden der allgemeine Aufbau eines Software-Projektes unter Unix erläutert und die Leistungsfähigkeit der Entwicklungs-Tools am praktischen Beispiel vorgeführt.
388

A Feasibility Map-Based Framework and Its Implementation for Selection in Engineering Design

Nandhini Devi, N January 2015 (has links) (PDF)
A pragmatic method for selecting components and devices from a database or parameterized models is developed in this thesis. The quantitative framework presented here is sufficiently general to accommodate an entire device assembly, a component, or a sub-assembly. The details pertaining to a device or a component are classified into three sets of variables: (i) user-specifications, s (ii) device parameters, p , and (iii) device characteristics, c . Functional, practical, and performance-related attributes that a user can provide comprise user-specifications. Since, most often, a specification cannot be specified as a single number, we allow the user to enter a range with lower and upper bounds. Device parameters comprise the geometry and material properties, and device characteristics include functional requirements and performance criteria. Thus, for a device, all its functional and utility attributes are contained in the union of sets s and c , whereas the geometry and the material properties are in set p . The equations governing the physical behavior of the device are written in terms of s , p , and c . These equations may sometimes be readily available; when they are not, it may be necessary to formulate them as required. By solving the governing equations along with the inequalities that arise from the lower and upper bounds on s , we obtain feasible ranges on p and c . Then, for any pair of device characteristics, a 2D feasible map is drawn, to visually portray the consequences of user-specifications. If the feasible map is null, small, or large, it indicates that the user-specifications are infeasible, stringent, or there is much scope for design, respectively. This can be inferred even before the designs are considered. Juxtaposed on the feasible map are points or lozenges corresponding to the quantitative attributes of the entries in the database. The ones that lie inside the feasible map can be reckoned as meeting the user-specifications and thus, enabling selection. On the other hand, if there is no database or none of the devices in the database lie inside the feasible map, we can identify the feasible ranges of all the design parameters for every point inside the feasible map. This information is useful to the designer to redesign and arrive at feasible designs by using parameterized models of the device. A Graphical User Interface (GUI) is developed to facilitate the user-interaction. The utility of the selection framework is demonstrated with a variety of case-studies including miniature pumps, heat pulse-based soil-moisture sensors, springs, flywheels, compliant mechanisms, micromechanical suspensions, etc. The latter two use kineto-elastic characteristics of deformable components. The framework, when used for materials selection, can be seen as an extension of Ashby’s materials selection method. This is also illustrated with two examples.
389

Designing experiences for virtual reality, in virtual reality : A design process evaluation / Att designa upplevelser för Virtual Reality, i Virtual Reality : En utvärdering av designprocessen

Bergvik, David January 2017 (has links)
Creating immersive experiences for virtual reality (VR) presents new design opportunities and challenges that do not appear when creating experiences on a screen. Creating prototypes and exploring concepts in VR is today limited to professionals with previous knowledge in 3D application development, and testing 3D experiences requires the usage of an Head-Mounted Display (HMD), which forces professionals to switch medium from the computer to an HMD. With new advances in this field, there have to be new solutions to these challenges. The goal of this thesis is to explore how VR technology can be utilized in the experience design process for VR. This is achieved through a literature study and conducting expert interviews, followed by a hardware evaluation of different HMDs and concept creation using rapid prototyping. From the interviews, a number of issues could be identified that correlates with the research from the literature study. Based on these findings, two phases were identified as suitable for further improvements; Concept prototyping and testing/tweaking of a created experience. Lo-fi and hi-fi prototypes of a virtual design tool were developed for HTC Vive and Google Daydream, which were selected based on the hardware evaluation. The prototypes are designed and developed, then tested using a Wizard of Oz approach. The purpose of the prototypes is to solve some of the issues when designing immersive experiences for HMDs in the suitable experience design phases that were identified by analyzing the interview results. An interactive testing suite for HTC Vive was developed for testing and evaluation of the final prototype, to verify the validity of the concept. Using Virtual Reality as a medium for designing virtual experiences is a promising way of solving current issues within this technological field that are identified in this thesis. Tools for object creation and manipulation will aid professionals when exploring new concepts as well as editing and testing existing immersive experiences. Furthermore, using a Wizard of Oz approach to test VR prototypes significantly improves the prototype quality without compromising the user experience in this medium.
390

Open Call / Open Call

Gajdošík, Andreas January 2018 (has links)
In diploma thesis Open Call I focus on unequal position of artists in current art world in which, despite the transparent practices like open calls, still persists the cult of name, the power of networking and personal recommendation. This topic I artistically process in form of practical artistic intervention, which is close to the tactics of 1:1 scale of Arte Útil - specifically by creation of software tool called Nomin. Its purpose is to support weakened or marginalized groups of artists. Nomin uses properties of email protocol SMTP to allow its users-spectators to send fake self-recommending emails - from email addresses of famous curators to the inboxes various galleries or other art institutions. During development of program Nomin and its technical background (software documentation, web page etc.) I followed the paradigm of free, libre, open source software (FLOSS) and also the methodology of agile software development in order to provide in this gesamtsoftwerk the users-spectators with fully functional, user-friendly software and give them possibility to influence further development of Nomin or directly participate on it. Created artwork is thus not a single artefact but rather a set of interconnected objects and practices grounded in the network of social bonds and behaviours which balances on the edge of institutional critique, useful art, participatory art and collective performance.

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