====== P2-REQ-16-2-005 ======

[[dido:99_annexes:annex-d-requirements:part-02:start| Return to Requirements]]

===== Statement =====

The Logical Architecture / PIM SHALL NOT prescribe execution granularity, deployment granularity, runtime packaging, deployment topology, communication technology, data serialisation format, programming language, middleware product, orchestration platform, or runtime infrastructure.

===== Source =====

Part 2, Section 16.2: Distributed Node-Based Architecture Requirements.

===== Rationale =====

The purpose of the Logical Architecture / PIM is to define platform-independent logical structure rather than implementation choices. Preserving technology independence allows multiple Implementation Profiles to realize the same Logical Architecture while maintaining common architectural meaning.

===== Applies To =====

This requirement applies to the definition, maintenance, review, interpretation, and implementation mapping of the Logical Architecture / PIM.

It applies specifically to:

  * Logical architectural definitions;
  * Domain Logical Profiles;
  * Implementation Profiles;
  * Deployment Profiles; and
  * Technology mappings.

===== Verification =====

Verification SHALL confirm that the Logical Architecture does not prescribe implementation or deployment technologies.

Verification activities should include review checks confirming that:

  * no execution mechanism is mandated;
  * no deployment topology is required;
  * no communication technology is prescribed;
  * no programming language or middleware product is required; and
  * implementation choices remain deferred to Implementation Profiles.

===== Traceability =====

This requirement supports traceability from the platform-independent Logical Architecture to multiple technology-specific Implementation Profiles.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-02:p2-req-16-2-001]]
  * [[dido:99_annexes:annex-d-requirements:part-02:p2-req-16-2-002]]
  * [[dido:99_annexes:annex-d-requirements:part-02:p2-req-16-2-003]]
  * [[dido:99_annexes:annex-d-requirements:part-02:p2-req-16-2-004]]

Related source section:

  * [[fxdemo:02-part:16-logical-requirements:16-2-distributed-node-based-architecture-requirements:start]]

===== Status =====

Draft

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