Chapter 22 — Architecture Governance Methodology Reference¶
22.1 Purpose¶
This chapter establishes the relationship between the Engineering Constitution and the Architecture Governance Methodology.
The Architecture Governance Methodology defines the organizational governance method used to establish, operate, maintain, and evolve constitutional governance.
The methodology itself is not a constitutional authority.
Instead, it provides the reusable governance framework from which constitutional governance is developed.
22.2 Definition¶
Architecture Governance Methodology is the organizational governance capability defining:
- governance principles;
- governance lifecycle;
- governance decision gates;
- governance closure methodology.
The methodology provides the governance approach used by the Engineering Intelligence Platform and may be reused across future platforms, product lines, and engineering organizations.
22.3 Relationship to Engineering Constitution¶
Engineering Constitution Rev.1 establishes constitutional governance.
Architecture Governance Methodology establishes governance methodology.
Their relationship is illustrated below.
Architecture Governance Methodology
│
▼
Engineering Constitution
│
▼
Approved Governance System
│
▼
Engineering Realization
The methodology supports constitutional development but does not replace constitutional authority.
22.4 Governance Method Principles¶
The Architecture Governance Methodology is founded upon the following principles.
Governance Before Engineering¶
Governance shall be established before Engineering Realization begins.
Stable Governance¶
Governance shall remain stable during normal engineering evolution.
Controlled Evolution¶
Constitutional governance evolves only through Architecture Change Control.
Engineering Independence¶
Engineering Baselines evolve independently within the approved Governance System.
Auditability¶
Governance decisions shall remain traceable and independently auditable.
22.5 Governance Lifecycle¶
The governance lifecycle adopted by the Engineering Intelligence Platform consists of the following stages.
Discovery
│
▼
Consolidation
│
▼
Normalization
│
▼
Completion
│
▼
Freeze
│
▼
Acceptance
│
▼
Authorization
│
▼
Engineering Realization
Each stage represents a constitutional governance milestone.
22.6 Governance Decision Gates¶
The methodology defines the following governance decision gates.
| Decision Gate | Purpose |
|---|---|
| Completion Gate | Confirms governance definition is complete |
| Freeze Gate | Confirms governance stability |
| Release Decision | Releases constitutional governance |
| Approval Decision | Establishes the approved Governance System |
| Authorization Decision | Authorizes Engineering Realization |
These gates collectively establish Governance Closure.
22.7 Governance Closure¶
Governance Closure is achieved when:
- Governance Definition is complete;
- Completion Criterion is satisfied;
- Architecture Freeze Criterion is satisfied;
- Governance System is approved;
- Engineering Realization is authorized.
Governance Closure marks the conclusion of Governance Design and the beginning of Governance Stewardship.
22.8 Organizational Reuse¶
Architecture Governance Methodology is intended for organizational reuse.
It may be adopted by:
- future Engineering Intelligence Platforms;
- additional product lines;
- subsidiary engineering organizations;
- future constitutional revisions.
Methodology remains reusable independent of any specific constitutional artifact.
22.9 Governance Method Independence¶
Governance methodology shall remain independent of governance artifacts.
Accordingly:
- Engineering Constitution defines governance.
- Architecture Governance Methodology defines how governance is established.
- Engineering Baselines realize governance.
Changes to Engineering Baselines shall not require changes to the methodology unless governance principles themselves evolve.
22.10 Chapter Summary¶
This chapter establishes Architecture Governance Methodology as the reusable organizational governance capability supporting Engineering Constitution Rev.1.
It confirms that:
- the methodology defines governance methods rather than governance authority;
- Engineering Constitution remains the sole normative constitutional authority;
- Governance Closure concludes Governance Design;
- Governance Stewardship succeeds Governance Design;
- the methodology may be reused across future engineering organizations and platforms.