Expert evaluations test user scenarios and then evaluate the experience based on a set of heuristics. To get the best results from these evaluations, customer experience professionals need to craft realistic user goals that test the most mission-critical parts of the experience. Ideally, user and goal descriptions should be derived from design personas and the qualitative research they are based on. When qualitative user research doesn't exist, other sources like operational data or in-context surveys can contribute to useful and realistic user goals and descriptions.