Reasoning about the E in EA Version 1.1 Jörgen Dahlberg [email_address] http://enklare.wordpress.org
Definitions of EA Gartner Research , defines EA as “the process of describing, and the description of, the desired future state of an organization's business process, technology and information to best support the organization's business strategy” US Chief Architects Forum , defines EA as “a management tool for improving an organization’s performance by optimizing how it uses its resources” Jeanne W. Ross, Peter Weill, David C. Robertson , defines EA as “the enterprise architecture is the organizing logic for business processes and IT infrastructure, reflecting the integration and standardization requirements of the company's operating model”
Two kinds of models Model for reasoning Model for documentation
Sarbanes Oxley Model for documentation Documentation Process Procedures Technology
Togaf Data Application Business Model for documentation Technology
Classic EA Vision Model for documentation Objective Goal Strategy Business process Information system Data Mission
Zachman Enterprise Product Model for reasoning Who When Why What How Where
LEA Enterprise Product Model for reasoning Who Where When Why What How Business logic Information substance Process People Location Workplan
Four areas of reasoning Business model Technology Market Operational model
Focus on the business model Customer segment Model for reasoning Value proposition Customer relationship Distribution channel Revenue streams Partner network Activities & resources Cost structure Key issues to solve
Focus on the market Bargain power of suppliers Threat of substitute products Bargain power of customers Model for reasoning Threat of new entrants Competitive rivalry within an industry
Focus on technology Storage Process Connectivity Access Computing Model for reasoning
Focus on operations Model for reasoning Replication Cordination Unification Diversification
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