Why Interaction Cost Matters to UX

Summary: Interaction cost is a direct measure of usability. It’s an indicator of how difficult the interface is going to be for the user.

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Why Interaction Cost Matters to UX

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Interaction Cost

Interaction cost is the effort users spend to achieve their goals on a site or app.

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Raluca Budiu is Senior Director, Data Strategy, at Nielsen Norman Group, where she uses her data-analysis expertise to drive strategic decisions. She also serves as editor for the articles published on NNgroup.com. Raluca has coauthored many NN/g reports, as well as the book Mobile Usability. She holds a Ph.D. from Carnegie Mellon University.

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