UTEST More than 10 Years in User ResearchBILTIR-UTEST Product Usability Unit

Concept Evaluation

Projects include;


User Acceptance Analysis for Three Dishwasher Concepts Based on Contextual Research

ARÇELİK A.Ş., Ankara Dishwasher Division | 2010

The aim of this study was to evaluate three dishwasher concept designs developed by the firm by considering how they were perceived and to what extent they were accepted by the user. At the first stage, the participants’ daily practices and habits regarding dishwashing were explored and their concerns and expectations were questioned. After that, the three concept designs were installed in the participants’ houses to be tested for a period of eight weeks. During this period usage of the products and the degree of user adaptation were evaluated. At the end, possible design requirements were identified as the outcome of the project. Besides the field study, which was carried out in the actual usage context, a questionnaire with 103 respondents was conducted with the purpose of identifying priorities of the users regarding dishwashers.





User Acceptance Analysis for an Automatic Dishwasher Based on Contextual Research

ARÇELİK A.Ş., Ankara Dishwasher Division | 2007

The ‘Techtouch’ dishwasher prototypes, which had been developed in collaboration with Arçelik in the early design stages, were evaluated in the real use context. The study covered an analysis in multiple dimensions such as interface design, dishwasher rack design, usefulness, trust, technology acceptance and perceived quality. Home visits, phone interviews and diaries were used as methods during the six weeks study with twenty participants. In the latter stages, specific problems of use, which had not been possible to be observed directly, were examined with a lab study with ten participants. Lastly, interface design, product documentation and informative sheets were evaluated in terms of user expectations, user behavior and user satisfaction.


Expert Analysis and Interface Modeling for Dishwashers Based on an Interface Concept

ARÇELİK A.Ş. Ankara Dishwasher Division | 2006

In the early design process of Arçelik 62191 – ‘Techtouch’ dishwasher, interface design drafts were evaluated with expert analysis and the preceding design improvements were overviewed before the prototype development. The dishwasher interface differed from conventional interfaces with its automatic program setting process and the design requirement to use a limited alphanumeric display for informing the user about the program flow. Following a careful analysis of the program setting and use process, the design recommendations were classified according to the technical limitations and the resulting interface was applied into prototypes by the firm for the user study in the real context.

Interface Design for Two Arçelik Dishwasher Models Based on Product Concepts

ARÇELİK A.Ş. Ankara Dishwasher Division | 2005

Based on the firm’s marketing objectives, design alternatives for the ‘single button’ dishwasher interface concept were developed. Two interface alternatives, which differed in functionality and interface elements, were proposed for upper and lower market segments.The meaning of ‘single button’ concept was examined in the initial stage and the functional specifications for both models were defined. Cognitive walkthrough was used as a method to develop functional flow diagrams and the resulting interface alternatives were modeled in detail.