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21112008 Enterprise Architecture Theory
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21112008 Enterprise Architecture Theory

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Theory of Enterprise Architecture in 20 minutes

Theory of Enterprise Architecture in 20 minutes

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  • 1. Enterprise Architecture Theory Lecture Dirk Dussart, Ph.D. (Managing Partner VITMC)
  • 2. (Enterprise) Architecture?
    • As a discipline started 21 years ago with John A. Zachman’s “ A Framework for Information Systems Architecture” (IBM Systems Journal, vol. 26, no. 3, 1987)
    • Concise definition from MIT Center for Information Systems Research (Weill et al):
      • “ The organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of the firm’s operating model”
    |
  • 3. EA Drivers | 1987 1996 2008
  • 4. Different EA Frameworks
    • Leading Frameworks
      • Zachman Framework for Enterprise Architecture – mainly a taxonomy
      • The Open Group Architectural Framework (TOGAF) – mainly an architectural process
      • The Federal Enterprise Architecture Framework – proscriptive methodology
      • The Gartner Methology – architectural practice
    |
  • 5. Zachman Framework – a taxonomy in action | “ A logical structure for classifying and organizing the descriptive representations of an enterprise that are significant to the management of the enterprise as well as to the development of the enterprise’s systems” - Zachman
  • 6. The Open Group Architectural Framework (TOGAF) |
    • Enterprise architecture :
    • Business Architecture
    • Application Architecture
    • Data Architecture
    • Technical Architecture
    • Enterprise continuum:
    • Foundation Architecture
    • Common System Architecture
    • Industry Architecture
    • Organization Architecture
    • Architecture Development Methodology
  • 7. FederalEnterprise Architecture Framework | “ A common language and framework to describe and analyze IT investments, enhance collaboration and ultimately transform the Federal government into a citizen-centered, results- oriented, and market-based organization as set forth in the President's Management Agenda” -FEAPMO
  • 8. Enterprise Architecture Governance |