Requirements-based testing

Requirements are essential input to test planning. When you plan the test effort, you often begin by identifying the project requirements that were used during development.

By reviewing system requirements in the planning phase of a test effort, you can reduce rework, errors, and defects. Quality management teams use requirements to learn this information:

The role of requirements in testing

In requirements-based testing, test cases are designed based on test objectives and test conditions that are derived from requirements. Examples of requirements-based tests are those that exercise specific functions or probe nonfunctional attributes, such as reliability or usability.

According to "Requirements Based Testing Process Overview" from Bender RBT Inc., the requirements-based testing process supports two goals:

  • Validating that requirements are correct, complete, unambiguous, and logically consistent.
  • Defining the smallest set of test cases necessary to ensure that the design and code fully meet the requirements.

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