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EA LESSONS FROM CLASSICAL ARCHITECTURE

June 14, 2006. a|EA metro chapter meeting. EA LESSONS FROM CLASSICAL ARCHITECTURE. EA: Lessons from Classical Architecture, Journal of Enterprise Architecture 2:2 , May, 2006, pp. 20-27. ©2006 Thales Research. Chartres Cathedral. TWO DEFINITIONS OF ARCHITECTURE. FUNDAMENTAL STRUCTURE

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EA LESSONS FROM CLASSICAL ARCHITECTURE

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  1. June 14, 2006 a|EA metro chapter meeting EA LESSONSFROM CLASSICAL ARCHITECTURE EA: Lessons from Classical Architecture, Journal of Enterprise Architecture2:2, May, 2006, pp. 20-27 Dr. Alex Pavlak Thales Research, Inc. 315 Dunham Ct., Severna Park, MD 21146-1670 (410)647-7334, (410) 315-9302 fx thales@comcast.net, http://mywebpages.comcast.net/thales ©2006 Thales Research

  2. Chartres Cathedral TWO DEFINITIONS OF ARCHITECTURE • FUNDAMENTAL STRUCTURE • THE DISCIPLINE OF CREATING FUNDAMENTAL STRUCTURE What is the difference between architecture & style? The structure of components, their relationships and the principles and guidelines governing their design and evolution over time. DOD Integrated Architecture Panel 1995 © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  3. DEFINE THE DISCIPLINE • WHAT IS ARCHITECTURE? • WHAT IS ENGINEERING? Frank Lloyd Wright’s FallingWater © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  4. Architecture Engineering GENERAL NEED Preliminary specs SYNTHESIZE ALTERNATIVES Final spec ENGINEERING DESIGN CLASSIC DEVELOPMENT WATERFALL Rechtin, E., Systems Architecting, Creating and Building Complex Systems, Prentice Hall, 1991 CLIENT CHOICE Architecture: creates requirements Engineering: starts with requirements Do all development projects have an architectural stage? BUILD © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  5. NEW ARCHITECTURE? • TOP LEVEL ARCHITECTURE IS NOT NEW • ENGINEERING STAGE CONTAINS NEW COMPONENTS • NEW OPEN DATA SYSTEMS – REMOTE MONITORING • NEW ELECTRIC POWER SYSTEM - REPLACES MANY HYDRAULIC SYSTEMS • DO THESE NEW COMPONENTS REPRESENT NEW ARCHITECTURE? © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  6. Define EA Does EA involve new architecture? © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  7. BOTTOM UP OR TOP DOWN? • TRADITIONAL EA LOOKS AT THE ENTERPRISE FROM THE PERSPECTIVE OF IT. • BUSINESS PROCESSES PRESENTED AS A REQUIREMENT • BOTTOM UP • IT ALLIGNED WITH BUSINESS NEED • “NEAR TERM TO-BE” • ARCHITECTURE OF THE ENTERPRISE DERIVES STRUCTURE FROM BUSINESS NEED • TOP DOWN © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  8. POWER OF IT CHANGES PROCESSES Past Future Processes independent of IT • Processes depend on IT. • Multiple alternatives • Different process candidates • Different IT candidates • Needs Architecture of the Enterprise © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  9. GENERAL NEED SYNTHESIZE ALTERNATIVES ENGINEERING DESIGN CLASSIC DEVELOPMENT WATERFALL CLIENT CHOICE How does EA map onto Development waterfall? BUILD © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  10. EA DEVELOPMENT WATERFALL Who is the client? What comes first, to-be or as-is design? © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  11. WHERE IS ARCHITECTURE/ENGINEERING/BUILD? Spewak, Tiemann, JEA 2:2, p.11 © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  12. ???? QUESTIONS • IS ARCHITECTURE STABLE OR DYNAMIC? • WHAT IS OPTIMUM ARCHITECTURE? • WHAT IS THE PURPOSE OF THE AS-IS? • WHATS WRONG WITH STOVEPIPES? • IS EA A PROJECT OR A PROCESS? • WHAT IS THE VALUE OF ARCHITECTURE? © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

  13. HOW DOES EA ADD VALUE? • “IF EA DOES NOT PRODUCE RESULTS, THEN IT IS GOING TO BE THE NEXT THING THAT GETS BLOWN AWAY” Richard Burk, OMB • HUGE PERFORMANCE GAINS COME FROM IT ENABLED PROCESS TRANSFORMATION Hammer & Champy • HOW TO ENGAGE THE BUSINESS SIDE? • CUT COST • ADD VALUE • LOOK FOR DISRUPTIONS © 2006,Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net

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