Test Strategy
A Test Strategy is a high-level document outlining the testing levels (types) to be executed for a project and the approach for achieving defined test objectives under specific conditions.
Example: A document specifying that the new mobile banking app will undergo unit testing, integration testing, and User Acceptance Testing (UAT). It also outlines the approach for each phase, such as using a specific automation tool for regression testing and having a team of internal employees perform the UAT.