Usability is defined as the “extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use” (EN ISO 9241-11). Usability is one key aspect in describing user experience (UX), along with emotional and aesthetic aspects. UX comprises the entire set of affects from that result from the interaction between a user and a product. This includes sensory stimulation (aesthetic experience), the meaning, which is attributed to the product (experience of meaning experience) and the feelings and emotions that emerge during the interaction (emotional experience, Hekkert 2006).
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