%0 Conference Proceedings %T User-Test Results Injection into Task-Based Design Process for the Assessment and Improvement of Both Usability and User Experience %+ Ruwido (AUSTRIA) %+ Interactive Critical Systems (IRIT-ICS) %+ Université Toulouse III - Paul Sabatier (UT3) %A Bernhaupt, Regina %A Palanque, Philippe %A Manciet, François %A Martinie, Célia %Z Also part of the Programming and Software Engineering book sub series (LNPSE, volume 9856) %< avec comité de lecture %( Human-Centered and Error-Resilient Systems Development: IFIP WG 13.2/13.5 Joint Working Conference, 6th International Conference on Human-Centered Software Engineering, HCSE 2016, and 8th International Conference on Human Error, Safety, and System Development, HESSD 2016, Stockholm, Sweden, August 29-31, 2016, Proceedings %B 6th International Conference on Human-Centred Software Engineering (HCSE 2016) / 8th International Conference on Human Error, Safety, and System Development (HESSD 2016) %C Stockholm, Sweden %Y Cristian Bogdan %Y Jan Gulliksen %Y Stefan Sauer %Y Peter Forbrig %Y Marco Winckler %Y Chris Johnson %Y Philippe Palanque %Y Regina Bernhaupt %Y Filip Kis %I Springer International Publishing %3 Lecture Notes in Computer Science book series (LNCS) %V 9856 %N Part 2: Usability Evaluation and Testing %P 56-72 %8 2016-08-29 %D 2016 %R 10.1007/978-3-319-44902-9_5 %K Task models %K Usability evaluation %K User experience evaluation %K Process %Z Computer Science [cs]Conference papers %X User Centered Design processes argue for user testing in order to assess and improve the quality of the interactive systems developed. The underlying belief is that the findings from user testing related to usability and user experience will inform the design of the interactive system in a relevant manner. Unfortunately reports from the industrial practice indicate that this is not straightforward and a lot of data gathered during user tests is hard to understand and exploit. This paper claims that injecting results from user-tests in user-tasks descriptions support the exploitation of user test results for designing the n+1 prototype. In order to do so, the paper proposes a set of extensions to current task description techniques and a process for systematically populating task models with data and analysis gathered during user testing. Beyond the already known advantages of task models, these enriched task models provide additional benefits in different phases of the development process. For instance, it is possible to go beyond standard task-model based performance evaluation exploiting real performance data from usability evaluation. Additionally, it also supports task-model based comparisons of two alternative systems. It can also support performance prediction and overall supports identification of usability problems and identifies shortcomings for user experience. The application of such a process is demonstrated on a case study from the interactive television domain. %G English %Z TC 13 %Z WG 13.2 %Z WG 13.5 %2 https://inria.hal.science/hal-01647709/document %2 https://inria.hal.science/hal-01647709/file/430524_1_En_5_Chapter.pdf %L hal-01647709 %U https://inria.hal.science/hal-01647709 %~ UNIV-TLSE2 %~ UNIV-TLSE3 %~ CNRS %~ SMS %~ UT1-CAPITOLE %~ IFIP-LNCS %~ IFIP %~ IFIP-WG %~ IFIP-TC13 %~ IFIP-HCSE %~ IFIP-WG13-2 %~ IFIP-LNCS-9856 %~ IFIP-HESSD %~ IFIP-WG13-5 %~ IRIT %~ IRIT-ICS %~ IRIT-FSL %~ IRIT-UT3 %~ TOULOUSE-INP %~ UNIV-UT3 %~ UT3-INP %~ UT3-TOULOUSEINP %~ SITE-WEB-MODELE-1 %~ SITE-WEB-MODELE-2 %~ SITE-WEB-MODELE-3 %~ SITE-WEB-MODELE-4