What is the difference between a test plan and a test strategy?

 A test plan and a test strategy are both documents used in software testing, but they have different purposes and focus on different aspects of the testing process.

A test plan is a document that outlines the objectives, scope, approach, and resources required for testing a software application or system. It specifies what to test, how to test, and who will perform the testing. The test plan is usually created at the beginning of a project, and it provides a roadmap for the testing team to follow throughout the project. The test plan typically includes details such as the test environment, test schedule, test scenarios, test cases, and test data.

A test strategy, on the other hand, is a high-level document that outlines the overall approach to testing for a project or program. It defines how testing will be carried out across the project, taking into account factors such as the type of system being tested, the project timeline, the testing objectives, and the resources available. A test strategy may also include details such as the testing methodologies, tools and techniques to be used, and the roles and responsibilities of the testing team.

In summary, a test plan is a detailed document that focuses on the specifics of testing a software application or system, while a test strategy is a higher-level document that defines the overall approach to testing for a project or program.

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