April 22, 2024

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Phase B : Business Architecture – TOGAF

The Business Architecture (Phase B)

This step of ADM looks at the business architecture and is the first pillar of the BDAT architectures (Business, Data, Application & Technology).


The inputs of this phase are:

  1. External reference materials.
  2. Request for Architecture Work (optional) (Prelim Phase).
  3. Business principles, business goals, and business drivers. (Phase A).
  4. Capability assessment (Phase A).
  5. Communication plan (Phase A).
  6. Organization Model for Enterprise Architecture (Prelim Phase).
  7. Tailored Architecture Framework (Prelim Phase).
  8. Approved Statement of Architecture Work (Phase A).
  9. Architecture principles (Phase A).
  10. Enterprise continuum.
  11. Architecture Repository.
  12. Architecture vision (Phase A).
  13. Draft architecture definition document (Version 0.1 of all baseline and target BDAT documents) (Phase A).


The steps included in this phase are:

  1. Select reference models, viewpoints, and tools.
  2. Develop a baseline business architecture description.
  3. Develop target business architecture description.
  4. Perform a gap analysis.
  5. Define candidate roadmap components.
  6. Resolve impacts across the architecture landscape.


At the end of this phase, the following outputs are generated:

  1. Refined Phase A Deliverables.
  2. Draft architecture definition document
    1. Baseline business architecture v1.0 (detailed)
    2. Target business architecture v1.0 (detailed)
  3. Draft architecture requirements specification – Gap Analysis.
  4. Business architecture components of an architecture roadmap.