Section 49 of 105
47. Modularity and Functional Independence
Stable section ID: S05-CON-014-SECTION-49 · 14 content blocks
System05 assets shall maintain the highest practical degree of modularity and functional independence.
A Module shall depend on neighboring assets only through declared Interfaces. It shall not depend on undocumented internal geometry, proprietary behavior, hidden services, or uncontrolled assumptions about another manufacturer’s implementation.
Functional independence shall support:
- Parallel design and development.
- Independent manufacturing.
- Separate verification.
- Fault isolation.
- Repair and replacement.
- Technological evolution.
- Regional adaptation.
- Multi-manufacturer participation.
Shared resources may be used when their ownership, capacity, priority, isolation, failure response, and maintenance responsibility are explicitly defined.
Modularity shall not be used to fragment an inherently integrated safety function into poorly coordinated products. The level of decomposition shall balance independence with system integrity, reliability, and verification.
A Module shall remain replaceable without requiring modification of unrelated Modules wherever safety, structural integrity, environmental continuity, and practical access permit.