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The Open Group Architecture Framework (TOGAF) Overview
General Overview
Matthew L. Helm06 January 2012
ENTERPRISE ARCHITECTURE
Enterprise
• A collection of organizations that share a common set of goals
• A single entity could contain multiple enterprises
• Extended enterprise may include partners and suppliers
Architecture
• Fundamental organization of something embodied in:– Its components– Their relationships to each other and the environment
– The principles governing its design and evolution
Source: ANSI/IEEE Standard 1471‐2000
Enterprise Architecture
• The organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of the firm’s operating model Source: MIT Center for Information Systems Research
• A conceptual blueprint that defines the structure and operation of an organization. The intent of EA is to determine how an organization can most effectively achieve its current and future objectives Source: SearchCIO.com
Why EA?
• Critical to business survival and success• Enables managed innovation within the enterprise
• Helps organizations achieve business strategy• More consistent business processes and information across business units
• More reliability and security = less risk
Good Things for IT
• Better traceability of IT costs• Lower IT costs• Faster design and development• Less complexity• Less IT risk
Source: “Why Enterprise Architecture Matters?”, The Open Group White Paper, W076
What is an Architecture Framework?
• Toolkit used to develop a broad range of architectures
• Describes a method for designing an information system in terms of building blocks and shows how blocks fit together
• Contains a set of tools and provides common vocabulary
• List of recommended standards and compliant products to implement building blocks
TOGAF
The Open Group
• Not‐for‐profit Industry consortium with over 350 member organizations– Cross‐industry– Vendor neutral– Technology neutral
• Monitors certification process• Vision: Boundaryless Information Flow• Archimate Software
Open Group Objectives
• An effective open framework and method for architecture
• Architecture as a professional discipline• Adequate commercial off‐the‐shelf (COTS) architecture tools
TOGAF History
TOGAF Trivia
• Used in major IT projects at IBM, EDS, HP, Sun• Platinum members include HP, IBM, Oracle and SAP
• More than 7500 certified in TOGAF
TOGAF Scope
• Emphasize business goals as architecture drivers and repository of best practice including—– TOGAF Architecture Development Method (ADM)– ADM Guidelines and Techniques– TOGAF Architecture Content Framework– Enterprise Continuum– TOGAF Reference Models– TOGAF Capability Framework
TOGAF 9 Specification
TOGAF 9 Components
• Architecture Development Method (ADM)– Interactive sequence of steps to develop enterprise‐wide architecture
• ADM Guidelines and Techniques– Guidelines and techniques to support application of the ADM
• Architecture Content Framework– Detailed model of architecture work products, including deliverables, artifacts within deliverables, and Architecture Building Blocks (ABBs) that deliverables represent
TOGAF 9 Components (cont.)
• Enterprise Continuum– Model for structuring a virtual repository and methods for classifying architecture and solution artifacts
• TOGAF Reference Models– Technical Reference Model (TRM)– Integrated Information Infrastructure Model (III‐RM)
• Architecture Capability Framework– Structured definition of the organization, skills, roles and responsibilities needed to establish and operate EA
TOGAF 9 Components (cont.)
Architecture Development Method
ADM
• Complementary to other frameworks• Widely adopted• Tailored to meet organization needs• Vendor, tool, and technology neutral• Business‐IT alignment• Based on best practices
ADM – Basic Principles
• Iterative method over the whole process• Each iteration = new decisions
– Enterprise coverage– Level of detail– Time horizon– Architecture asset re‐use
• Decisions based upon:– Competence/resource availability– Value accruing to the enterprise
• Every phase is validated against and validates current requirements of the business
Preliminary Phase
Phase A: Architecture Vision
Phase B: Business Architecture
Phase B: Business Architecture
• Organization structure• Business goals and objectives• Business functions• Business services• Business processes• Business roles• Correlation of organization and functions
Phase B: Business Architecture Steps
1. Select reference models, viewpoints, tools2. Define baseline architecture3. Define target architecture description4. Perform gap analysis5. Define roadmap components6. Conduct stakeholder review7. Finalize architecture8. Create Architecture Definition Document (ADD)
Phase C: Information Systems Architectures
Architecture Domains (Types)
Phase D: Technology Architecture
Phase E: Opportunities and Solutions
Phase F: Migration Planning
Phase G: Implementation Governance
Phase H: Architecture Change Management
TOGAF Web Site
http://www.opengroup.org/togaf/
Questions