Formative vs Summative Evaluations in UX
Formative vs Summative Evaluations in UX
#ux #userresearch #uidesign
In the user-experience profession, we always talk about speak testing and evaluation your designs. There are two types of evaluation, formative and summative, and where you are in the design process determines what type of evaluation you should conduct.
Formative evaluations focus on determining which aspects of the design work well or not, and why. These evaluations occur throughout a redesign and provide information to incrementally improve the interface.
For example, we are building an ecommerce app, completely redesigned version of our mobile app. In the design process, we do a quick prototype a solution and then we test it with few users to see how usable it is. This test is an example of formative evaluation — it helps designers identify what needs to be changed to improve the interface.
Formative evaluations of interfaces involve testing and changing the product, usually multiple times, and therefore are well-suited for the redesign process or while creating a new product.
Summative evaluations describe how well a design performs, often compared to a benchmark such as a prior version of the design or a competitor. Unlike formative evaluations, whose goals is to inform the design process, summative evaluations involve getting the big picture and assessing the overall experience of a finished product.
Summative evaluations occur less frequently than formative evaluations, usually right before or right after a redesign.
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Formative vs Summative Evaluations in UX
#ux #userresearch #uidesign
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