MO-001c — Reproducibility

Go to MO-001 — Repeatable, Compliant, and Secure Infrastructure Environments

Statement

Crucible SHALL reproduce an Infrastructure Environment from the same Controlled Inputs in accordance with the defined equivalence criteria.

Derived From

This requirement derives from:

The Original Requirement states:

Crucible SHALL enable rapid creation of repeatable, compliant, and secure infrastructure environments.[C1]

MO-001c preserves the portion of the Original Requirement that characterizes Infrastructure Environment creation as repeatable by requiring Crucible to reproduce an Infrastructure Environment from the same Controlled Inputs.

The separate requirements derived from MO-001 address:

Rationale

Reproducibility allows an organization to recreate an Infrastructure Environment from the same Controlled Inputs and determine whether the resulting environments satisfy defined equivalence criteria.

The phrase the same Controlled Inputs requires reuse of the same identified input artifacts, configurations, baselines, revisions, and other controlled material.

The equivalence criteria determine which characteristics of the reproduced Infrastructure Environment must match the characteristics of the reference Infrastructure Environment. Exact byte-for-byte identity may not be required for every environment component, but any permitted variation must be defined.

Reproducibility supports:

Consistent environment creationControlled comparison of Infrastructure EnvironmentsProvenanceTraceabilityConfiguration controlDefect investigationRecovery and replacementIndependent evaluation of security and compliance outcomesThis requirement does not establish a deployment-duration threshold, Security Baseline, or Compliance Baseline. The other requirements derived from MO-001 address those outcomes.

Applies To

This requirement applies to:

Reference Infrastructure EnvironmentsReproduced Infrastructure EnvironmentsControlled InputsControlled Input identifiers and revisionsDefined equivalence criteriaDeclarative DescriptionsCrucible DescriptionsBaselinesBaseline CompositionImage LayersInfrastructure BaselinesMachine ImagesInfrastructure ConfigurationsInfrastructure DeploymentProvisioningEvidenceProvenanceTraceability

Verification

Verification confirms that:

The reference Infrastructure Environment is identifiedThe Controlled Inputs used to create the reference Infrastructure Environment are identifiedThe same Controlled Inputs, including their identifiers and revisions, are used to create the reproduced Infrastructure EnvironmentCrucible creates the reproduced Infrastructure EnvironmentThe equivalence criteria identify the characteristics compared between the reference and reproduced Infrastructure EnvironmentsThe reference and reproduced Infrastructure Environments satisfy the defined equivalence criteriaAny permitted differences between the reference and reproduced Infrastructure Environments conform to the equivalence criteriaThe verification record preserves Traceability among the Controlled Inputs, the reference Infrastructure Environment, the reproduced Infrastructure Environment, and the equivalence evaluation

Referenced By

The following pages reference this requirement:

Delivery Phase

Implemented and Verified

Implementation Status

Requirement Status

Issues

The following unresolved issues affect this requirement:

Notes for Editors

This requirement page should retain the stable requirement identifier MO-001c.

This page is a leaf requirement page and omits a trailing :start from its namespace.

The parent MO-001 page is a non-leaf page and retains a trailing :start in its namespace.

Changes to the Statement should preserve:

as the responsible actorReproduction of an Infrastructure Environment as the required outcomeReuse of the same Controlled InputsEvaluation of the reproduced Infrastructure Environment against defined equivalence criteriaThe unresolved equivalence criteria should remain recorded in the Issues section until a controlling source defines them.

Material changes should receive review and should update the verification criteria, source records, and Issues section.

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