874 resultados para User Interfaces
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Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014
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Technological innovations, the development of the internet, and globalization have increased the number and complexity of web applications. As a result, keeping web user interfaces understandable and usable (in terms of ease-of-use, effectiveness, and satisfaction) is a challenge. As part of this, designing userintuitive interface signs (i.e., the small elements of web user interface, e.g., navigational link, command buttons, icons, small images, thumbnails, etc.) is an issue for designers. Interface signs are key elements of web user interfaces because interface signs act as a communication artefact to convey web content and system functionality, and because users interact with systems by means of interface signs. In the light of the above, applying semiotic (i.e., the study of signs) concepts on web interface signs will contribute to discover new and important perspectives on web user interface design and evaluation. The thesis mainly focuses on web interface signs and uses the theory of semiotic as a background theory. The underlying aim of this thesis is to provide valuable insights to design and evaluate web user interfaces from a semiotic perspective in order to improve overall web usability. The fundamental research question is formulated as What do practitioners and researchers need to be aware of from a semiotic perspective when designing or evaluating web user interfaces to improve web usability? From a methodological perspective, the thesis follows a design science research (DSR) approach. A systematic literature review and six empirical studies are carried out in this thesis. The empirical studies are carried out with a total of 74 participants in Finland. The steps of a design science research process are followed while the studies were designed and conducted; that includes (a) problem identification and motivation, (b) definition of objectives of a solution, (c) design and development, (d) demonstration, (e) evaluation, and (f) communication. The data is collected using observations in a usability testing lab, by analytical (expert) inspection, with questionnaires, and in structured and semi-structured interviews. User behaviour analysis, qualitative analysis and statistics are used to analyze the study data. The results are summarized as follows and have lead to the following contributions. Firstly, the results present the current status of semiotic research in UI design and evaluation and highlight the importance of considering semiotic concepts in UI design and evaluation. Secondly, the thesis explores interface sign ontologies (i.e., sets of concepts and skills that a user should know to interpret the meaning of interface signs) by providing a set of ontologies used to interpret the meaning of interface signs, and by providing a set of features related to ontology mapping in interpreting the meaning of interface signs. Thirdly, the thesis explores the value of integrating semiotic concepts in usability testing. Fourthly, the thesis proposes a semiotic framework (Semiotic Interface sign Design and Evaluation SIDE) for interface sign design and evaluation in order to make them intuitive for end users and to improve web usability. The SIDE framework includes a set of determinants and attributes of user-intuitive interface signs, and a set of semiotic heuristics to design and evaluate interface signs. Finally, the thesis assesses (a) the quality of the SIDE framework in terms of performance metrics (e.g., thoroughness, validity, effectiveness, reliability, etc.) and (b) the contributions of the SIDE framework from the evaluators perspective.
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Tyss on tutkittu toimialakohtaisen tietojrjestelmn kyttliittymn ja kytettvyyden kehittmist uuteen sovelluskehittimen versioon siirtymisen yhteydess. Kirjallisuusosassa ksitelln keskeisi asioita kyttliittymien suunnitteluun ja kytettvyyteen kehittmiseen liittyen. Tyss esitetn mahdollisia ratkaisumalleja erinisiin ongelmiin. Ty sislt kyttjkyselyn, johon vapaaehtoiset jrjestelmn kyttjt osallistuivat. Tmn lisksi ty sislt analyysia tutkimuksesta saatujen tulosten perusteella. Lopputuloksena tyss ovat testauksen merkityksen korostuminen ja yhtenisyys kyttliittymien suunnittelussa. Mys asiakastyytyvisyyden merkitys tietojrjestelmn kytettvyydess korostuu.
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Tss diplomityss oli tavoitteena tutkia kytettvyytt ja kyttliittymi tablet-laitteiden nkkulmasta. Tyss tutkittiin sit, mik tekee hyvn tablet-kyttliittymn ja mit asioita sen suunnittelussa tulisi huomioida. Lisksi tehtvn oli selvitt, miten tyn toimeksian-tajan kytss olevat tekniikat soveltuvat kytettviksi tablet-laitteiden kanssa. Tyn poh-jalta havaittiin, ett tablet-kyttliittymien suunnittelussa tulisi noudattaa vakiintuneita kyttliittymsuunnittelun periaatteita, joista trkeimmt ovat yksinkertaisuus, yhtenisyys, virheiden ehkisy ja kyttjtuki. Hyvn kytettvyyden takaamiseksi suunnittelussa tulisi kuitenkin huomioida tablet-laitteiden erikoispiirteet ja rajoitukset. Tutkimustyn lisksi diplomityss toteutettiin yksinkertainen tablet-laitteille suunniteltu kyttliittym Vaadin TouchKit -kyttliittymkehyst kytten.
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The recent rapid development of biotechnological approaches has enabled the production of large whole genome level biological data sets. In order to handle thesedata sets, reliable and ecient automated tools and methods for data processingand result interpretation are required. Bioinformatics, as the eld of studying andprocessing biological data, tries to answer this need by combining methods and approaches across computer science, statistics, mathematics and engineering to studyand process biological data. The need is also increasing for tools that can be used by the biological researchers themselves who may not have a strong statistical or computational background, which requires creating tools and pipelines with intuitive user interfaces, robust analysis workows and strong emphasis on result reportingand visualization. Within this thesis, several data analysis tools and methods have been developed for analyzing high-throughput biological data sets. These approaches, coveringseveral aspects of high-throughput data analysis, are specically aimed for gene expression and genotyping data although in principle they are suitable for analyzing other data types as well. Coherent handling of the data across the various data analysis steps is highly important in order to ensure robust and reliable results. Thus,robust data analysis workows are also described, putting the developed tools andmethods into a wider context. The choice of the correct analysis method may also depend on the properties of the specic data setandthereforeguidelinesforchoosing an optimal method are given. The data analysis tools, methods and workows developed within this thesis have been applied to several research studies, of which two representative examplesare included in the thesis. The rst study focuses on spermatogenesis in murinetestis and the second one examines cell lineage specication in mouse embryonicstem cells.
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La version intgrale de ce mmoire est disponible uniquement pour consultation individuelle la Bibliothque de musique de l'Universit de Montral (http://www.bib.umontreal.ca/MU)
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Vorgestellt wird eine weltweit neue Methode, Schnittstellen zwischen Menschen und Maschinen fr individuelle Bediener anzupassen. Durch Anwenden von Abstraktionen evolutionrer Mechanismen wie Selektion, Rekombination und Mutation in der EOGUI-Methodik (Evolutionary Optimization of Graphical User Interfaces) kann eine rechnergesttzte Umsetzung der Methode fr Graphische Bedienoberflchen, insbesondere fr industrielle Prozesse, bereitgestellt werden. In die Evolutionre Optimierung flieen sowohl die objektiven, d.h. messbaren Gren wie Auswahlhufigkeiten und -zeiten, mit ein, als auch das anhand von Online-Fragebgen erfasste subjektive Empfinden der Bediener. Auf diese Weise wird die Visualisierung von Systemen den Bedrfnissen und Prferenzen einzelner Bedienern angepasst. Im Rahmen dieser Arbeit kann der Bediener aus vier Bedienoberflchen unterschiedlicher Abstraktionsgrade fr den Beispielprozess MIPS ( MIschungsProzess-Simulation) die Objekte auswhlen, die ihn bei der Prozessfhrung am besten untersttzen. ber den EOGUI-Algorithmus werden diese Objekte ausgewhlt, ggf. verndert und in einer neuen, dem Bediener angepassten graphischen Bedienoberflche zusammengefasst. Unter Verwendung des MIPS-Prozesses wurden Experimente mit der EOGUI-Methodik durchgefhrt, um die Anwendbarkeit, Akzeptanz und Wirksamkeit der Methode fr die Fhrung industrieller Prozesse zu berprfen. Anhand der Untersuchungen kann zu groen Teilen gezeigt werden, dass die entwickelte Methodik zur Evolutionren Optimierung von Mensch-Maschine-Schnittstellen industrielle Prozessvisualisierungen tatschlich an den einzelnen Bediener anpat und die Prozessfhrung verbessert.
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Abstract: The paper describes an auditory interface using directional sound as a possible support for pilots during approach in an instrument landing scenario. Several ways of producing directional sounds are illustrated. One using speaker pairs and controlling power distribution between speakers is evaluated experimentally. Results show, that power alone is insufficient for positioning single isolated sound events, although discrimination in the horizontal plane performs better than in the vertical. Additional sound parameters to compensate for this are proposed.
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This paper presents a Graphical User Interface, developed with python and the graphic library wxpython, to GRASS GIS. This GUI allows to access several modules with a graphic interface written in Spanish. Its main purpouse is to be a teaching tool, that is the reason way it only allows to access several basic put crucial moludes. It also allows user to organize the elements presented to stress the aspects to be resalted in a particular working sesion with the program
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En este trabajo se describe la solucin ideada para la implantacin de un Sistema de Informacin Geogrfica que debe dar servicio al Instituto Universitario del Agua y del Medio Ambiente de la Universidad de Murcia y al Instituto Euromediterrneo del Agua. Dada la naturaleza de ambas instituciones, se trata de una herramienta orientada fundamentalmente al estudio de recursos hdricos y procesos hidrolgicos. El proceso se inici con una identificacin de las necesidades de los usuarios (con perfiles y requerimiento diferentes) y el posterior desarrollo del diseo conceptual que pudiera asegurar la satisfaccin de estas necesidades. Debido a que los requerimientos de los usuarios as lo demandaban, se ha tenido en cuenta tanto a usuarios que trabajan en entorno linux como a otros que lo hacen en entorno windows. Se ha optado por un sistema basado en software libre utilizando GRASS para el manejo de informacin raster y modelizacin; postgis (sobre postgreSQL) y GRASS para la gestin de informacin vectorial; y QGIS, gvSIG y Kosmo como interfaces grficas de usuario. Otros programas utilizados para propsitos especficos han sido R, Mapserver o GMT
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The JModel suite consists of a number of models of aspects of the Earth System. They can all be run from the JModels website. They are written in the Java language for maximum portability, and are capable of running on most computing platforms including Windows, MacOS and Unix/Linux. The models are controlled via graphical user interfaces (GUI), so no knowledge of computer programming is required to run them. The models currently available from the JModels website are: Ocean phosphorus cycle Ocean nitrogen and phosphorus cycles Ocean silicon and phosphorus cycles Ocean and atmosphere carbon cycle Energy radiation balance model (under development) The main purpose of the models is to investigate how material and energy cycles of the Earth system are regulated and controlled by different feedbacks. While the central focus is on these feedbacks and Earth System stabilisation, the models can also be used in other ways. These resources have been developed by: National Oceanography Centre, Southampton project led by Toby Tyrrell and Andrew Yool, focus on how the Earth system works.
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Proyecto de investigacin realizado en plataforma web con programacin HTML5. Esta investigacin es la reconstruccin de 7 aos de actividades (2003-2010) generadas en un centro cultural ubicado en la calle 32 con carrera 13 en la ciudad de Bogot. Este proyecto contiene textos periodsticos, acadmicos, entrevistas, archivos de audio y fotografas. Adems de reconstruir la historia de lo ocurrido en este edificio, la investigacin estudia las relaciones entre colectivos artsticos, polticos y juveniles en el contexto social bogotano.
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Abstract In this talk, I'll focus on the work we've been doing on evaluating the cognitive side of dealing with information resources and increasingly complex user interfaces. While we can build increasingly powerful user interfaces, they often come at the cost of simple design and ease of use. I'll describe two specific studies: 1) work on the ORCHID project focused on measuring mental workload during tasks using fNIRS (a blood-oxygen-based brain scanner), and 2) a evaluation metric for measuring how much people learn during tasks. Together these provide advances towards understanding the cognitive side of information interaction, in working towards building better tools for users.
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Abstract Broadcast video can be augmented with links to information related to the topics in the video and to other related entities. Viewers are sufficiently digitally literate that they can carry out their own searches during or after a broadcast. We investigate what types of information viewers would actually like to see while being engaged in watching a news broadcast. On the base of this we have designed user interfaces for passive and active uses of a second screen to accompany a news broadcast. A next step is to understand the specific types of information users would like to consult and investigate whether these can be automatically generated.
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A Web-based tool developed to automatically correct relational database schemas is presented. This tool has been integrated into a more general e-learning platform and is used to reinforce teaching and learning on database courses. This platform assigns to each student a set of database problems selected from a common repository. The student has to design a relational database schema and enter it into the system through a user friendly interface specifically designed for it. The correction tool corrects the design and shows detected errors. The student has the chance to correct them and send a new solution. These steps can be repeated as many times as required until a correct solution is obtained. Currently, this system is being used in different introductory database courses at the University of Girona with very promising results
