Saturday, July 10, 2010

TOGAF - ADM - Snapshot

Here is a snapshot of TOGAF - ADM Phases


·         Preliminary Phase

o   Defining the Enterprise
o   Identifying key drivers and elements in the organizational context
o   Defining the requirements for architecture work
o   Defining the architecture principles that will inform any architecture work
o   Defining the framework to be used
o   Defining the relationships between management frameworks
o   Evaluating the enterprise architecture’s maturity

·         Phase A – Architecture Vision
o   It starts with a ‘Request for Architecture Work’ from sponsoring organization to architecture organization
o   Key activities : Architecture Vision & Business Scenarios
o   Development of Business Scenarios
o   Define scope and Validate business principles, goals & drivers and establish EA KPIs
o   Stakeholder Analysis should be used to identify key players.
o   Identification of Business Transformation Risks

·         Phase B – Business Architecture
o   To develop business architecture to support agreed architecture vision
o   Describe baseline business architecture, target business architecture, analyze gaps between them
o   Select & develop relevant architecture viewpoints.

·         Phase C – Information Systems Architecture
o   Documenting fundamental organization of an Enterprise’s IT systems, embodied in major types of information & application systems
o   Two key artifacts can be developed either sequentially or concurrently :
§  Data Architecture
§  Application Architecture

·         Phase D – Technology Architecture
o   Map application components to Software & Hardware
o   Objective is to develop target technical architecture
o   Define physical realization of the architectural solution

·         Phase E – Opportunities & Solutions
o   Review target business objectives & capabilities
o   Consolidate gaps from phases B to D
o   Objective is identification of target delivery vehicles
o   It concentrates on how to deliver the architecture
o   Derive a series of Transition Architectures that deliver continuous business value
o   Generate & gain consensus on an outline Implementation and Migration strategy
o   Actual solutions (COTS, Packages etc.) are selected

·         Phase F – Migration Planning
o   Cost benefit analysis of the projects identified in the Phase E & risk assessment
o   Prioritization of the work packages, projects and building blocks
o   Finalize the Architecture vision & Architecture Definition document in line with the agreed implementation approach
o   Confirm the Transition architectures with stakeholders.
o   Finalize a detailed implementation & migration plan

·         Phase G – Implementation Governance
o   Objectives are
§  To formulate recommendations for each implementation project
§  To Govern and manage an architecture contract
§  To ensure conformance of deployed solution with Target Architecture
o   Defines an Operation Framework to ensure long life of deployed solution
o   Outputs are : Architecture Contract, Compliance Assessments, Change Requests, Implementation Governance Model

·         Phase H – Architecture Change Management
o   To ensure baseline architectures continue to fit for purpose
o   To maximize business value from architecture
o   To ensure that architecture achieves its original target business value
o   It is related to management of Architecture Contracts between architecture function and business users of the enterprise
o   Rule of thumb to identify the extent of change
§  If change impacts more than 2 stakeholders, then it may require architecture re-design and re-entry to ADM
§  If only one stakeholder, then may be a candidate for change management
§  If change can be allowed under dispensation, then candidate for change management.

·         Requirements Management
o   Objective is to define process to manage requirements for EA and its subsequent implementation

Let us see more on TOGAF - ADM in coming days 

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