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Dr. Alex Pavlak Thales Research, Inc. 315 Dunham Ct., Severna Park, MD 21146-1670 (410)647-7334, (410) 315-9302 fx

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Presentation on theme: "Dr. Alex Pavlak Thales Research, Inc. 315 Dunham Ct., Severna Park, MD 21146-1670 (410)647-7334, (410) 315-9302 fx"— Presentation transcript:

1 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 1 EA: Lessons from Classical Architecture, Journal of Enterprise Architecture 2:2, May, 2006, pp. 20-27 EA LESSONS FROM CLASSICAL ARCHITECTURE ©2006 Thales Research June 14, 2006 a|EA metro chapter meeting

2 LESSONS FROM CLASSICAL ARCHITECTURE © 2006, Thales Research, 315 Dunham Ct., Severna Park, MD 21146-1670; (410)647-7334, (410) 315-9302; thales@comcast.net 2 TWO DEFINITIONS OF ARCHITECTURE FUNDAMENTAL STRUCTURE THE DISCIPLINE OF CREATING FUNDAMENTAL STRUCTURE Chartres Cathedral 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

3 LESSONS FROM CLASSICAL ARCHITECTURE © 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

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

5 LESSONS FROM CLASSICAL ARCHITECTURE © 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?

6 LESSONS FROM CLASSICAL 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?

7 LESSONS FROM CLASSICAL 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

8 LESSONS FROM CLASSICAL ARCHITECTURE © 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 PastFuture Processes depend on IT. Multiple alternatives Different process candidates Different IT candidates Needs Architecture of the Enterprise Processes independent of IT

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

10 LESSONS FROM CLASSICAL ARCHITECTURE © 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?

11 LESSONS FROM CLASSICAL ARCHITECTURE © 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

12 LESSONS FROM CLASSICAL ARCHITECTURE © 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?

13 LESSONS FROM CLASSICAL 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


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