P4-REQ-21-8-012

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Implementation flows SHALL NOT redefine FX logical interaction patterns.

Part 4, Section 21.8: Interaction Pattern Realization Requirements.

Implementation flows are technical realizations of interaction patterns defined by the FX Demo Logical Profile. They may introduce implementation-specific sequencing, scripts, configuration, communication mechanisms, or runtime packaging, but they do not define the logical meaning of the interaction.

This constraint preserves separation between Part 3 logical behavior and Part 4 implementation realization.

This requirement applies to:

• implementation processing flows;
• DDS exchange sequences;
• scripts;
• configuration artifacts;
• runtime participants; and
• demonstration flows.

Verification SHALL confirm that Phase 0 implementation flows do not redefine FX logical interaction patterns.

Verification activities should include review checks confirming that:

• logical interaction definitions remain governed by Part 3;
• implementation-specific sequencing does not silently change logical meaning;
• implementation participants remain mapped to applicable logical responsibilities;
• supporting scripts and configuration remain implementation concerns; and
• changes to logical behavior are governed at the applicable logical layer.

This requirement preserves the separation between Part 3 FX logical interaction patterns and their selected Phase 0 implementation realizations.

Related requirement identifiers:

• P4-REQ-21-8-002
• P4-REQ-21-8-011
• P4-REQ-21-2-004

Related source section:

• 21.8 Interaction Pattern Realization Requirements

Draft