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Wizard of Oz Test – What is it?

Author: Minh Nguyen

Reading time:

Sep 2023

For some products, the implementation of functions can be so complex that high costs are incurred right from the start in order to create an initial testable product version.

Particularly in the case of functions where it is uncertain whether and how they will be received by the user, it is understandable if these costs are shied away from and functions are then either not implemented at all or implemented without testing.

The Wizard of Oz method tries to prevent this by confronting the user with a product that only appears to work.


How does a Wizard of Oz test work?

The functionality (e.g. a selection algorithm) is simulated by an expert and the result is passed on to the user.

The Wizard of Oz test answers these questions

  • Where should I arrange elements (e.g. buttons, menu, menu sub-items) in my interface?
  • Where do problems (e.g. errors, waiting times, getting “lost”) occur when using my product?
  • Does the design of my interface support the users in their tasks?


How does a Wizard of Oz test work with us?

Let us find out together whether a Wizard of Oz test is the right method for your question and how a cooperation works in detail. You can find our contact details here.

Not the right method for your question?

In our method assistant we have compiled the most important methods for the most typical questions. Try out the method assistant and find exactly the right method for your question: Click here for the method assistant.

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