What does the priority depend on in testing?

The priority in testing depends on the combination of the following factors:

• Importance of the functionality for the business: How critical the tested function is for core business processes and profit generation.
• Frequency of use: How often users will interact with this part of the application.
• Impact on the user: How serious the consequences will be for the user in case of an error in this functionality (e.g., work blockage, data loss).
• Risk of defect occurrence: The likelihood of an error appearing in this module, based on logic complexity, code novelty, defect history.
• Dependencies: The influence of this functionality on other parts of the system.
• Release deadlines: The need to test critical functionality before a certain release date.

Usually, the priority is determined jointly with the product team or the customer.