public:99_annexes:annex-b-terms-and-definitions:s:system_under_test

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision		 Previous revision
public:99_annexes:annex-b-terms-and-definitions:s:system_under_test [2026/09/12 17:42] – removed - external edit (Unknown date) 127.0.0.1public:99_annexes:annex-b-terms-and-definitions:s:system_under_test [2026/09/12 17:43] (current) – ↷ Links adapted because of a move operation nick_dido
Line 1: Line 1:
 +====== System Under Test (SUT) ======
  
 +[[public:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]]
 +
 +===== Discussion =====
 +
 +A **System Under Test (SUT)** is a System, subsystem, component, or other defined portion of a System that plays the role of the subject being evaluated by a [[public:99_annexes:annex-b-terms-and-definitions:t:test|Test]].
 +
 +Being **under test** is contextual. It does not represent an intrinsic state of the System.
 +
 +The same System may participate in different Tests in different roles. For example, a System may be:
 +
 +  * the System Under Test in one Test
 +  * a supporting System in another Test
 +  * a reference System in another Test
 +  * outside the scope of another Test
 +
 +The testing role is therefore established by the applicable Test, [[public:99_annexes:annex-b-terms-and-definitions:t:test_definition|Test Definition]], or [[public:99_annexes:annex-b-terms-and-definitions:t:test_item|Test Item]] rather than by changing the intrinsic state of the System.
 +
 +===== Definition =====
 +
 +//A System, subsystem, component, or other defined portion of a System that is the subject of evaluation within the context of a Test.//
 +
 +===== Source =====
 +
 +  * Object Management Group, Test Information Interchange Format (TestIF) 1.0, for the relationship between Test Items and the System Under Test
 +  * DIDO-TE architectural clarification of System Under Test as a contextual testing role
 +
 +===== Note =====
 +
 +A [[public:99_annexes:annex-b-terms-and-definitions:t:test_item|Test Item]] may identify:
 +
 +  * the complete System Under Test
 +  * a subsystem or component of the System Under Test
 +  * another entity relevant to the scope of the Test
 +
 +The System Under Test is therefore distinct from the Test Item.
 +
 +The **System Under Test** is the subject being evaluated.
 +
 +The **Test Item** is an Information Model concept used to identify or represent an entity within the scope of the Test.
 +
 +A System Under Test may have operational state, configuration, version, identity, and other characteristics independently of its testing role.
 +
 +For example:
 +
 +><code>
 +System
 +    Operational State = RUNNING
 +    Version           = 3.2.1
 +
 +Test Item
 +    identifies        = System
 +    Testing Role      = System Under Test
 +</code>
 +
 +Because the System plays the role of System Under Test, it does not require an "Under Test" state variable.
 +
 +===== Example =====
 +
 +A distributed Node implementation is being evaluated for conformance with a governed communication protocol.
 +
 +The Node implementation is the **System Under Test** for that Test.
 +
 +A Test Item may identify the complete Node implementation, while additional Test Items may identify individual components or interfaces within the Node that are relevant to specific Test Cases.
 +
 +In another Test, the same Node may instead participate as a supporting or reference System.
 +
 +----
 +
 +<WRAP centeralign>
 +© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
 +</WRAP>