Architecture Change Management defines how LUNA Charts adapts to new requirements, technologies, standards, and stakeholder needs throughout its lifecycle.
Rather than treating the architecture as a static artifact, this phase establishes a controlled evolution process that preserves architectural consistency while enabling continuous improvement.
All architectural changes follow documented governance processes and remain aligned with the project's long-term vision and architectural principles.
Architecture Change Management pursues the following objectives:
Architectural changes may be initiated by various internal and external factors.
Typical triggers include:
The existence of a trigger does not automatically require an architectural change. Every trigger must first be evaluated.
Every proposed architectural change is evaluated before implementation begins.
Evaluation includes questions such as:
Architectural principles always take precedence over feature demand.
New functionality should strengthen the existing architecture rather than weaken its consistency.
Architectural evolution follows a structured review process.
Change Trigger
↓
Architecture Evaluation
↓
Architecture Discussion
↓
Maintainer Decision
↓
Architecture Documentation Update
↓
Implementation
↓
Project Documentation Update
↓
Release
Implementation follows documented architectural decisions rather than defining them.
Architecture documentation is the primary source of truth for architectural decisions.
Whenever an architectural change is approved, the following artifacts should be reviewed and updated where applicable:
Documentation updates should precede or accompany implementation to ensure architectural transparency.
LUNA Charts is designed to evolve continuously through incremental architectural improvements.
Continuous improvement includes:
Continuous evolution should preserve the project's architectural identity.
Some changes may fundamentally affect the architecture.
Examples include:
Such changes should be treated as major architectural revisions and may require a new major software version.
Major architectural evolution should be carefully evaluated before implementation begins.
Architecture Change Management builds upon all previous ADM phases.
Architecture Change Management ensures that future architectural evolution remains aligned with these foundations.
Architecture Change Management establishes:
The result is an architecture that remains stable, maintainable, and adaptable throughout the lifecycle of LUNA Charts.
No structural changes were introduced in this document during this iteration.
This phase concludes the Architecture Development Method (ADM) lifecycle by defining how architectural evolution is managed after implementation.
The Architecture Change Management process complements the governance model established in Implementation Governance (Phase G) and provides the long-term evolution strategy for LUNA Charts.