By far the most common and fundamental measure of customer attitudes is customer satisfaction. Customer satisfaction is a measure of how well a product or service experience meets customer expectations. It's a staple of customer analytic scorecards as a barometer of how well a product or company is performing. You can measure satisfaction on everything from a brand, a product, a feature, a website, or

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Asking questions immediately after a user attempts a task compliments task-performance data such as task times and completion rates. Post-task satisfaction data is a bit different than the questionnaires asked after a usability test (such as the SUS).  There is a strong correlation (r > .6) between post-task ratings and post-test ratings. Knowing one can predict about 36% of the other[pdf]. However, even this relatively

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In a usability test you typically collect some type of performance data: task times, completion rates and perhaps errors or conversion rates. It is also a good idea to use some type of questionnaire which measures the perceived ease-of-use of an interface. This can be done immediately after a task using a few questions (post-task questionnaires). It can also be done after the usability testing

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