See page 51 in https://uxqb.org/wp-content/uploads/documents/CPUX-F_EN_Curriculum-and-Glossary.pdf

Usability inspection is a form of usability evaluation. It is based on the judgment of one or more evaluators who examine or use an interactive system to identify potential usability problems, and deviations from established dialogue principles, heuristics, user interface guidelines and user requirements. The evaluators base their evaluation on their experience as user experience professionals or as users of the interactive system that is being evaluated.

A heuristic evaluation is a specific form of a usability inspection that is guided by a list of approximately 10 heuristics.

User surveys evaluate users' satisfaction with an interactive system. In a user survey, users report subjective data into a questionnaire based on their experience of using an interactive system. The usability of a questionnaire is important; for example, the questions in the questionnaire must be easy to understand and the questionnaire must keep users informed of their progress.

User surveys are also used to gather context of use information as part of understanding the context of use.