Enterprise Architecture as Strategy and SOA

Adapted from the Book, "Enterprise Architecture as Strategy" by Peter. Weill, Jeanne W. Ross, David C. Robertson

• Portion on Google Books:  http://books.google.com/books?id=5MVcnOyJ2bEC&dq=enterprise+architecture+as+strategy

• Amazon:  http://www.amazon.com/exec/obidos/ASIN/1591398398

EA as S talks about four operational models.  These four models are defined by the level of unified business process and the level of data integration.  See figure 1.
 
EA as S also talks about "for stages of architectural maturity."

1. Business Silos "where companies look to maximize individual business unit needs"
2. Standardized Technology "providing IT efficiencies through technology standardization"
3. Optimied Core "provides companywide data and process standardization as appropriate"
4. Business Modularity "manage and reuse loosely coupled IT-enabled business process components to preserve global standards while enabling local differences"

Jim Phelps' Application of this Framework