National Methodology for Developing EA Components
10 stages from project strategy to execution and maintenance, plus supporting elements. Applied across all six domains.
Unified phases with reference models and principles during execution.
In brief
10 unified stages from project strategy to execution and maintenance.
Four supporting elements: general component model, reference models, principles, and governance.
Applied across all six EA domains.
Ten stages in the DGA guidelines
The national methodology for developing EA components has ten stages (project strategy to execution and maintenance), described in DGA guidelines under NORA. Governance runs across all stages.
Develop EA project strategy
Develop EA project plan
Analyse current state
Develop EA framework
Build reference models
Build current architecture
Build target architecture
Develop transition plan
EA management plan
Execute and maintain
Governance runs across all stages
Governance of the national EA framework is not limited to one stage. The five governance areas (NORA guideline section 4.4): program management; change management (EA awareness and promotion); capability management (training, job scope, organisational structures); policy management (policies and regulations); and performance management (metrics, KPIs, outcomes) — apply throughout all ten stages.
The 10 stages (national methodology)
Follow these phases in order within the EA component development cycle. Each phase builds on the previous one.
Scope
Current state
Trends
Target state
Gap analysis
Roadmap
Requirements
Each phase builds on the previous one and applies across all six domains with the general component model and reference models.
Steps in the current-state assessment (per domain)
The current-state phase is carried out for each EA domain separately and has four steps:
Define the approved scope of work for the domain
Gather EA data
Document current EA components and views
Analyse current state and make recommendations
Steps in the target-state design phase (4)
The target-state design phase is carried out per domain and has two steps:
Build the initial vision for future EA components
Detail future EA components and views
Supporting elements
These elements support the phases: the general component model, reference models, principles, and governance.
General component model for EA
National EA reference models
EA principles
Governance of the national EA framework