Test Design is the process of creating a plan for testing a product or system to ensure it meets specified requirements. It involves identifying test objectives, selecting appropriate test cases, and determining the necessary resources. The goal is to uncover defects and verify that the product functions as intended. Effective Test Design helps streamline the testing process by providing clear guidelines and criteria for evaluation. It can include various techniques, such as black-box testing and white-box testing, to assess different aspects of the product. A well-structured test design ultimately contributes to higher quality and reliability.