A repository of acronyms, jargon, and useful words for product and customer teams


Likert scales assess the degree to which a test participant agrees or disagrees about a given statement, on a scale of 1 to 5, with 5 commonly representing “strongly agree,” and 1 signifying “strongly disagree.” Due to the numeric scale, these assessments offer more insight than a “yes” or “no” question, which is often too black and white and doesn’t allow for any neutrality.
Longitudinal studies refer to the repetitive action of observing the same test participants over days, months, or even years to notice what changes and developments naturally occur. Researchers can obtain long-term insights into their customers, providing valuable information for how they interact with and experience a product or service.
Low-fidelity prototyping is a method of testing design concepts by transforming your ideas into limited function, testable artifacts. The role of low-fidelity prototypes is to collect feedback on your design during the early stages.