Artifact: Test Model

Test Model	The test model is a collection of test cases and test procedures and their relationship. A test case can be implemented by one or more test procedures, and a test procedure may implement (the whole or parts of) one or more test cases.
Worker:	Test Designer
Reports:	See Reports:  Test Survey
More information:	See Guidelines: Test Model
Purpose Properties Timing Responsibility Tailoring

Purpose

The purpose of the test model is to express the scope of testing and how the test cases are implemented by test procedures.   The following people use the test model:

• The test designer to express the scope of the tests and to show how test cases are implemented by test procedures.
• The integration tester, system tester, and performance tester to understand the goals of test.
• The designer as input to design of test functionality.
• The implementer as input for implementing test functionality.

Properties

Timing

The initial test model is created during the initial test design phase of the first iteration, as soon as there are some use cases or scenarios defined. The test model is refined throughout the remainder of the lifecycle during each iteration.

Responsibility

A Test Designer is responsible for the integrity of the test model, ensuring that:

• The test model accurately reflects the contents of the iteration.
• The test procedures contain the appropriate content and detail necessary to set-up, implement, execute, and evaluate the test cases.
• Sufficient test cases have been identified to verify satisfactory achievement of the use cases and / or requirements.

The Test Designer uses the contents of the test model to produce the following related artifacts:

• Test Procedures
• Test Cases
• Test Scripts

Tailoring

The test model (contents and format) may require modification to meet the needs of internal or external standards, guidelines, or oversight.