Test Planning is the process of defining the scope, approach, resources, and schedule for testing activities in a project. It outlines the objectives of testing, identifies the testing tasks, and determines the necessary resources, including tools and personnel. A well-structured test plan helps ensure that all aspects of the product are evaluated effectively. The test plan also includes criteria for success, risk assessment, and the responsibilities of team members. By establishing clear guidelines and expectations, Test Planning facilitates communication among stakeholders and helps ensure that the testing process aligns with project goals and timelines.