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How Useful Is the System Usability Scale (SUS) in UX Projects?

Summary: SUS is a 35-years old and thus well-established way to measure user satisfaction, but it is not the most recommended way of doing so in user research.

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https://www.youtube.com/watch?v=6b2YFgRCVDE

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Beyond the NPS: Measuring Perceived Usability with the SUS, NASA-TLX, and the Single Ease Question After Tasks and Usability Tests

Post-test questionnaires like the SUS measure perceived usability of an entire system; post-task scales suggest problematic parts of a design.

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Jakob Nielsen, Ph.D., is a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer). Dr. Nielsen established the "discount usability engineering" movement for fast and cheap improvements of user interfaces and has invented several usability methods, including heuristic evaluation. He holds 79 United States patents, mainly on ways of making the Internet easier to use.

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