====== NOD-009d — Handle a Node Resource-Control Exception ======
[[dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-02-node-requirements:nod-009-control-node-resources:start|Go to NOD-009 — Control Node Resources]]
===== Statement =====
The [[dido:99_annexes:annex-b-terms-and-definitions:d:dido-te|DIDO-TE]] SHALL handle each [[dido:99_annexes:annex-b-terms-and-definitions:t:test_execution_exception|Test Execution Exception]] arising from the control of a [[dido:99_annexes:annex-b-terms-and-definitions:n:node|Node]] resource using the governing [[dido:99_annexes:annex-b-terms-and-definitions:t:test_procedure|Test Procedure]].
===== Derived From =====
* [[dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-02-node-requirements:nod-009-control-node-resources:start|NOD-009 — Control Node Resources]]
* [[dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-02-node-requirements:nod-009-control-node-resources:nod-009a-establish-node-resource-controls|NOD-009a — Establish Node Resource Controls]]
* [[dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-02-node-requirements:nod-009-control-node-resources:nod-009b-allocate-node-resources|NOD-009b — Allocate Node Resources]]
* [[dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-02-node-requirements:nod-009-control-node-resources:nod-009c-control-node-resource-use|NOD-009c — Control Node Resource Use]]
* [[dido:03-dido-te:99-annexes:annex-b-references:dte-005|[DTE5] DIDO-TE Requirements Register]], source requirement identifier and obligation to be assigned
* [[dido:03-dido-te:99-annexes:annex-b-references:dte-006|[DTE6] Structured Information Processing Reference Architecture (SIP-RA)]]
* [[dido:03-dido-te:99-annexes:annex-b-references:dte-007|[DTE7] Federated Data Interpretation Systems Reference Architecture (FDIS-RA)]]
===== Rationale =====
A resource-control exception arises when resource allocation, access, use, modification, restriction, suspension, restoration, retention, or release differs from a condition specified by the governing [[dido:99_annexes:annex-b-terms-and-definitions:t:test_definition|Test Definition]].
Such conditions include an unavailable resource, unsuccessful allocation, unauthorized access, excessive consumption, exhaustion, contention, leakage, unsuccessful restriction, ineffective control action, unintended effect, or failure to release a resource.
The governing Test Procedure specifies the actions used to detect, contain, classify, assess, correct, escalate, and disposition the exception. The disposition identifies whether the DIDO-TE continues, restricts, suspends, restores, retries, terminates, or invalidates the affected activity.
Exception handling prevents a resource-control failure from changing test conditions without detection, affecting unrelated Nodes, exhausting shared resources, or allowing invalid Test Results to be treated as valid.
The DIDO-TE preserves the distinction between the exception, its cause, its effects, and its disposition. A detected exception remains unresolved until the DIDO-TE verifies the required disposition and resulting resource and Node states.
===== Applies To =====
* [[dido:99_annexes:annex-b-terms-and-definitions:d:dido-te|DIDO-TE]]
* [[dido:99_annexes:annex-b-terms-and-definitions:n:node|Node]]
* [[dido:99_annexes:annex-b-terms-and-definitions:n:node_configuration|Node Configuration]]
* [[dido:99_annexes:annex-b-terms-and-definitions:n:node_binding|Node Binding]]
* [[dido:99_annexes:annex-b-terms-and-definitions:d:dependency|Dependency]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_definition|Test Definition]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_procedure|Test Procedure]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_environment|Test Environment]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_execution|Test Execution]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_execution_exception|Test Execution Exception]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_execution_exception_type|Test Execution Exception Type]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_resource|Test Resource]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:test_result|Test Result]]
* [[dido:99_annexes:annex-b-terms-and-definitions:a:authorizing_authority|Authorizing Authority]]
* [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]]
* [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]]
===== Verification =====
Verification confirms that:
- The governing Test Definition identifies the resource-control conditions whose violation produces a Test Execution Exception.
- The governing Test Procedure specifies the actions used to handle each resource-control exception.
- The DIDO-TE uniquely identifies each resource-control exception.
- The DIDO-TE identifies the affected Node and resource.
- The DIDO-TE identifies the expected condition and the observed condition.
- The DIDO-TE assigns a Test Execution Exception Type to each exception.
- The DIDO-TE identifies the time, sequence, source, scope, severity, and potential effect of each exception.
- The DIDO-TE identifies affected Nodes, resources, Test Environments, Test Executions, and Test Results.
- The DIDO-TE contains or restricts the affected resource use when the governing Test Procedure requires containment or restriction.
- The DIDO-TE prevents the exception from unnecessarily affecting unrelated Nodes, resources, or Test Executions.
- The DIDO-TE retries a resource-control action only when the governing Test Procedure specifies a retry.
- The DIDO-TE prevents unlimited, duplicate, or uncontrolled retries.
- The DIDO-TE assigns a disposition to each resource-control exception.
- Each disposition identifies the responsible Authorizing Authority, rationale, scope, required actions, and governing conditions.
- The DIDO-TE verifies completion of each containment, corrective, recovery, termination, or escalation action.
- The DIDO-TE determines the effect of the exception on affected Test Executions and Test Results.
- The DIDO-TE identifies the resulting Node and resource states.
- The DIDO-TE prevents closure of the exception without a disposition and supporting Evidence.
- The DIDO-TE maintains Traceability among the Node, resource, governing Test Definition, governing Test Procedure, resource control, exception, disposition, corrective actions, Test Executions, Test Results, and resulting Evidence.
- An undetected, unhandled, unauthorized, unresolved, incorrectly dispositioned, or untraceable resource-control exception constitutes nonconformance with this requirement.
===== Referenced By =====
The following pages reference this requirement:
{{backlinks>.#dido:03-dido-te}}
===== Delivery Phase =====
Assign the delivery phase.
===== Implementation Status =====
Assign the implementation status.
===== Requirement Status =====
The proposed derived requirement requires review and acceptance.
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===== Issues =====
Assign the source requirement identifier and obligation from the DIDO-TE Requirements Register.
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===== Notes for Editors =====
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