ENV-004j — Detect Environmental Variation

Go to ENV-004 — Provide Deterministic Test Environment

Statement

The DIDO-TE SHALL detect environmental variation during each Test Execution.

Derived From

, source requirement identifier and obligation to be assigned[DTE6] Structured Information Processing Reference Architecture (SIP-RA)[DTE7] Federated Data Interpretation Systems Reference Architecture (FDIS-RA)

Rationale

Environmental variation occurs when an observed environmental condition differs from the condition specified by the applicable Test Definition.

Variation may arise from changes to Baselines, Configuration values, Test Inputs, time sources, random value sources, execution ordering, resource allocation, external dependencies, or communication conditions.

Undetected variation weakens the interpretation, Reproducibility, and Comparability of Test Results.

Detection establishes whether the Test Execution remained within the conditions and tolerances specified by the Test Definition. The resulting record supports assessment of the variation and its effect on the Test Results.

Applies To

Verification

Verification confirms that:

The applicable Test Definition identifies the environmental conditions subject to observation.Each observed condition has a specified value, range, state, sequence, or tolerance.The DIDO-TE observes each identified condition during its applicable period.The DIDO-TE compares each observed condition with its specified condition.The DIDO-TE detects variation outside the permitted tolerance.Each detected variation identifies the affected environmental condition.Each detected variation identifies its observed value, state, sequence, or behaviour.Each detected variation identifies the applicable expected condition.Each detected variation records its occurrence time and duration, where applicable.The DIDO-TE records detected variations as Evidence.The DIDO-TE maintains Traceability among each detected variation, the affected environmental condition, the Test Definition, the Test Execution, the Evidence, and the Test Results.An undetected, unidentified, unsupported, unrecorded, or untraceable environmental variation constitutes nonconformance with this requirement.Verification includes:

Inspection of the environmental conditions and permitted tolerances specified by the Test DefinitionObservation of environmental monitoring during Test ExecutionComparison of specified conditions with observed conditionsA negative assessment that changes a Baseline or Configuration valueA negative assessment that alters a Test Input or random value sourceA negative assessment that changes execution ordering or resource allocationA negative assessment that changes an external dependency or communication conditionConfirmation that the DIDO-TE detects and records each variationInspection of environmental-variation Evidence and Traceability recordsConfirmation that each negative assessment produces a nonconformance result

Referenced By

Related Architecture Sections

Add links to the architecture sections governing environmental monitoring, variation detection, Test Execution, Evidence, Test Results, and Traceability.

Delivery Phase

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Requirement Status

Draft

Statement Reference

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