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TOGAF 101

Part 2 - TOGAF Architecture Development Method (ADM)

  • TOGAF ADM is a compresensive method of enterprise architecture (EA) development, based on the best practices

ADM Iterations

  • TOGAF includes multiple phases to develop various architectures using following iterations
    • Architecture Capability (AC) Iteration
    • Architecture Development (AD) Iteration
    • Transition Planning (TP) Iteration
    • Architecture Governance (AG) Iteration

TOGAF ADM Stages Objectives, Input, Output and Steps (Mind Maps)

Preliminary Stage Steps

Vision Stage (A) Steps

Business Architecture Stage (B) Steps

Data and Application Architecture Stage (C) Steps

Technology Architecture Stage (D) Steps

Opportunities and Solutions Stage (E) Steps

Migration Planning Stage (F) Steps

Implementation Governance Stage (G) Steps

Change Management Stage (H) Steps

Reasons for Adapting the ADM Process

  • The order of the phases in the ADM is dependent on the maturity of the architecture discipline within the enterprise
  • Wanting to adapt the ADM is if the TOGAF framework is to be integrated with another enterprise framework
  • The ADM is one of the many corporate processes that make up the corporate governance model
  • The ADM is being mandated for use by a prime or lead contractor in an outsourcing situation, and needs to be tailored
  • The enterprise is a small-to-medium enterprise, and wishes to use a "cut-down" method
  • The enterprise is very large and complex, and the architecture method needs to be adapted to recognize this

Criterian in Assigning a Business Value to Work Package

  • Performance Evaluation Criteria are used by portfolio and capability managers to approve and monitor the progress of the architecture transformation
  • Return-on-Investment Criteria have to be detailed and signed off by the various executive stakeholders
  • Business Value will be used by portfolio and capability managers to allocate resources and, in cases where there are cutbacks, business value in conjunction with return on investment can be used to determine whether an endeavor proceeds, is delayed, or is canceled
  • Critical Success Factors (CSFs) should be established to define success for a project and/or project increment
  • Measures of Effectiveness (MOE) are often performance criteria and many corporations include them in the CSFs
  • Strategic Fit based upon the overall Enterprise Architecture (all tiers) will be the critical factor for allowing the approval of any new project or initiative and for determining the value of any deliverable

The Drivers for Change in Change Management Stage (Phase H)

  • Technology-related drivers for architecture change requests:
    • New technology reports
    • Asset management cost reductions
    • Technology withdrawal
    • Standards initiatives
  • Business drivers for architecture change:
    • Business-as-usual developments
    • Business exceptions
    • Business innovations
    • Business technology innovations
    • Strategic change

Part 1 - Introduction

Part 3 - ADM Guidelines and Techniques

Part 4 - Architecture Content Framework

Part 5 - Enterprise Continuum

Part 6 - Architecture Capability Framework

Disclaimer The Open Group owns the information rights.