A test design specification should have the following components according to IEEE recommendation .

Identifier: A unique identifier is assigned to each test design specification with a reference to its associated test plan.

Features to be tested: The features or requirements to be tested are listed with reference to the items mentioned in SRS/SDD.

Approach refinements: In the test plan, an approach to overall testing was discussed. Here, further details are added to the approach.

Test case identification: The test cases to be executed for a particular feature/function are identified here.Moreover, test procedures are also identified. The test cases contain input output information and the test procedures contain the necessary steps to execute the tests. Each test design specification is associated with test cases and test procedures. A test case may be associated with more than one design specification.

Feature pass/fail criteria: The criteria for determining whether the test for a feature has passed or failed, is described.