The Wizard of Oz methodology allows you to test users’ reactions to a system before you even have to think about development. This can save time, money and those ever so embarrassing moments when products are launched before they are fit and ready for users. Why?Īs UX researchers we often remind people to test systems at every stage of development, and that includes testing before development has even begun. The user is sitting in one room talking into a microphone while the ‘Wizard’ sits behind the scenes typing what the user is saying so it appears on the user’s screen as if it was done by the computer. In the image above from IBM, we see an example for testing the concept of a ‘Listening typewriter’. The Wizard of Oz method allows researchers to test a concept by having one practitioner – the ‘Moderator’ – leading the session face to face with each user, whilst another practitioner – the ‘Wizard’ – controls the responses sent to the user via the chosen device. Wizard of Oz testing – The listening typewriter IBM 1984
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