Post on 19-Sep-2014
description
Reasoning about the E in EA
Version 1
Jörgen DahlbergJorgen_dahlberg@yahoo.se
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 improvingan 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
Two models in between
Zachman LEA
Other models #4 Zachman
Enterprise Product
Model for reasoning
Who When Why What How Where
Other models #5 LEA
Enterprise Product
Model for reasoning
Who Where When Why What How
Business logic
Information substance ProcessPeople Location Workplan
Three areas of reasoning
Business model TechnologyMarket
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 ProcessConnectivity
Access
Computing
Model for reasoning