Standard for Testability and Diagnosability Characteristics and Metrics
The Diagnostic and Maintenance Control Subcommittee of
IEEE Standards Coordinating Committee 20
13 October 1999
Scope: This standard defines technology independent testability and diagnosability characteristics and metrics; particularly those based on relevant standard information models including standard AI-ESTATE information models.
This standard will provide consistent, unambiguous definitions of testability and diagnosability characteristics and metrics. This will provide a common basis for system testability and diagnosability assessment.
Requirements: The following requirements shall be met by the P1522 standard.
- Technological Independence—The metrics defined in this standard shall be applicable to any target technology.
- Implementation Independence—The metrics defined in this standard shall not require any specific software implementation.
- Consistent Definitions—This standard shall provide English and mathematical definitions that do not contradict one another.
- Unambiguous Definitions—To avoid ambiguity, the mathematical definition will always take precedence over the English definition.
- Measurable Definitions—Predictive and empirical metrics defined in this standard shall be derivable from standard information models (at least those in the AI-ESTATE standards) and verifiable or determinable from measurement data.
- Knowledge—This standard shall clearly define the knowledge required for each testability and diagnosability metric.
- Non-normative Definitions—Selected qualitative characteristics that are not mathematically definable shall be included in an informative annex or separate recommended practice.