Artifact: Testability Element   A specialized implementation element that realizes the test-specific behavior that the software supports. Other Relationships:  Part Of Implementation Model Extended By: Test Stub Role:  Implementer  Optionality/Occurrence:  This artifact is used if you are designing and implementing test-specific functionality.  Templates and Reports:    Examples:    UML Representation:  Element in the implementation model, stereotyped as <<testability element>>.  More Information:  Guideline: Implementation Element   Purpose Timing Responsibility Tailoring Input to Activities:  Implement Design Elements Implement Developer Test Implement Testability Elements   Output from Activities:  Implement Testability Elements     Purpose The purpose of the Testability Element is to implement test-specific functionality that facilitates testing, either manual or automated. There are various types of test-specific behavior, two of which are: "Stubs" for implementation elements that you need to simulate or have decided not to include completely in a test target. Elements that provide specialized interfaces or output.   Timing Testability Element are created and modified in parallel with creating and modifying corresponding application or system implementation elements   Responsibility The Implementer is responsible for this artifact. For additional details, see Responsibility in Artifact: Implementation Element.   Tailoring See Tailoring in Artifact: Implementation Element. © Copyright IBM Corp. 1987, 2004. All Rights Reserved.

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