In short, the article explained that usability & user experience are often confused with each other. To differentiate them, the author provided many several ways of defining the two terms, from technical definitions to metaphors. The technical ISO definitions are as follows:
Usability:
Usability is concerned with the “effectiveness, efficiency and satisfaction with which specified users achieve specified goals in particular environments”
User Experience:
User experience is concerned with “all aspects of the user’s experience when interacting with the product, service, environment or facility”But my favorite were the questions. For usability, "Can the user accomplish their goal?" & for user experience, "Did the user have as delightful an experience as possible?"
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