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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

Prilog rešenju problema automatske funkcionalne provere uređaja potrošačke elektronike zasnovanih na ekranu osetljivom na dodir / A Contribution to Solving the Problem of Automated Functional Verification ofConsumer Electronic Devices with Touchscreens

Kaštelan Ivan 23 May 2014 (has links)
<p>Predmet istraživanja ove doktorske disertacije je pronalaženje re&scaron;enja<br />problema automatske funkcionalne provere uređaja potro&scaron;ačke elektronike<br />koji su zasnovani na ekranu osetljivom na dodir. Osnovni izazov je pronaći<br />efikasan i pouzdan način električne stimulacije ekrana, bez mehaničke<br />pobude. Drugi izazov je definisati algoritam za proveru sadržaja na ekranu<br />posmatrajući ga sa stanovi&scaron;ta percepcije korisnika, pomoću kamere. Rezultat<br />istraživanja je integrisani sistem sa stimulacionom pločom koja kontrolisano<br />pobuđuje ekran električnim stimulusom, bez mehaničkih pokreta. Provera<br />uređaja se vr&scaron;i po principu crne kutije. Cilj sistema je proveriti da li se uređaj i<br />njegova programska podr&scaron;ka pona&scaron;aju očekivano.</p> / <p>Topic of research of this PhD thesis is finding the solution for the mentioned<br />problem of automated functional verification of consumer electronics devices<br />with touchscreens. The main challenge is to find a reliable and efficient way<br />of electric stimulation of touchscreens, without mechanical movements. The<br />second challenge is to design an algorithm for analysis of content on the<br />touchscreen, observing it from the user&rsquo;s perception, with the help of a<br />camera. Result of the research is the integrated system with the stimulation<br />board for controllable electrical stimulation of touchscreens, without<br />mechanical movements. The integrated system verifies whether the device<br />and its software behave as expected.</p>
2

Pekskärmar i turbulenta miljöer : I vilken utsträckning kan precision upprätthållas / Touchscreens in turbulent conditions : To what extent is precision possible

Eriksson, Alexander January 2013 (has links)
Pekskärmar används i allt större utsträckning som interaktionsteknik för hemelektronik. Tekniken har traditionellt sett inte använts i krävande miljöer, exempelvis i miljöer där skakningar och g-laster förekommer. Introduktionen av pekskärmsteknologi i cockpitmiljö får konsekvenser för utformningen av förarmiljön vilka bör utredas. Denna studie syftade till att empiriskt utvärdera användarnas prestation med avseende på precision vid olika interaktionsmanövrar på en pekskärm. Fyra försök genomfördes med 14 försöksdeltagare i en simulerad miljö där olika grader av skakningar förekom. Precisionsmätningar genomfördes i samband med försöken och försöksdeltagarnas subjektivt upplevda arbetsbelastning mättes med hjälp av NASAs självskattningsformulär för upplevd arbetsbelastning (TLX). Korrelationsanalyser genomfördes mellan försöksdeltagarnas subjektiva arbetsbelastning och data från försöken. Det genomfördes också differensanalyser mellan försökens olika betingelser för att se om det förekom någon inlärningseffekt. Testresultaten visar att relativt god precision går att uppnå vid interaktion med pekskärm men att vissa typer av interaktion är svårare och skattas högre med avseende på arbetsbelastning än andra. Resultatet från en inledande workshop med förare och ingenjörer visar på en positiv inställning till pekskärmar som komplement till inmatning i cockpit. Rapporten ger rekommendationer för utformningen av gränssnitt för pekskärm för att undvika interaktionsproblem vid skakningar och g-laster. / Touchscreens are a common occurrence in everyday applications these days. The technology is not traditionally used in high hazard environments, in example where vibrations and G-forces is frequently occurring. The consequences of introducing touchscreens to the cockpit environment are something to consider when designing the pilot environment.   The purpose of this study is to empirically evaluate the user performance and precision when interacting with touchscreens. Four tests were conducted with 14 trial participants in a semi-controlled environment where varying degrees of vibrations occurred. Measurements of the participants’ precision were measured together with a subjective workload measure developed by NASA (TLX).  Correlation analyses were carried out between the experimental participants’ subjective workload and data from the experiments.  The difference in precision and performance was also analysed between the precision tests to see if there was any learning effects.   The test results show that good precision was possible to some extent but that some types of interaction is more difficult then others hence increasing workload for the participants.  The results of an initial workshop with pilots and engineers show a positive attitude towards touchscreens as complement for the currently available input methods. The report provides recommendations for the design of touchscreen interfaces to avoid issues caused by shaking and g-loads.
3

Nástroj pro podporu neformální specifikace pro mobilní zařízení / Tool for Informal Specification for Mobile Devices

Rzyman, Daniel January 2013 (has links)
This thesis aims to design an effective solution of supportive tool in field of the informal specification. Solution is based on the application for mobile devices with touch screens, Apple iPad. Design of the final product is supported by many studies, in particular those analyzing field of the informal specification, technical features, user interfaces, implementation methods and user experience testing. Thesis defines functional requirements for application development accompanied by design and the implementation of three different graphical user interfaces. Important in this thesis is the evaluation of the user experience testing, which defines future development.

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