Methods for quantitative usability requirements: a case study on the development of the user interface of a mobile phone

Timo Jokela, Jussi Koivumaa, Jani Pirkola, Petri Salminen, Niina Kantola. Methods for quantitative usability requirements: a case study on the development of the user interface of a mobile phone. Personal and Ubiquitous Computing, 10(6):345-355, 2006. [doi]

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