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Enterprise Architecture Concept (Emergence of EA (EA continue to grow…
Enterprise
Architecture Concept
Emergence of EA
Introduced by John Zachman in 1987
they using EA to synchronizing IT with their business goals
EA continue to grow
China
India
Japan
South Korea
Russia
Iran
Usually EA is implemented
Big companies
Government agencies
enterprises
Significance of EA
First group
EA represents a summarized
conceptual plan
describing the structure of an
organization with its separate components and interrelated between them
main goal of
EA is considered fi nding the most effi cient way,
in which the enterprise can reach its goals
Second group
EA is treated
as a set of
rules
models
principles
third group
Institute of Electrical and
Electronics Engineers (IEEE)
Institute
for Enterprise Architecture Developments
fourth group
presents EA as an approach to the achievement of business
goals through the best possible application on of IT
2 expression
consider EA as
a sort of framework
synchronizing business
goals and processes with IT
Structural elements
in the enterprise architecture
4 interrelated elements
information
architecture
architecture of application
technology architecture
business architecture
Have 3 level of architecture
Level 1 :Corporate mission and strategy
Level 2 : Business architecture
Business processes
Organiztion structure
Documents processing system
Level 3 : System architecture
Application
Information (data)
Technologies
Building enterprise architecture
successful achievement of the organization
goals requires the system architecture to be
based upon the business enterprise architecture
EA architects identify the processes which need
change
preferred approach for EA
Zachman framework published by John Zachman
Zachman framework is made of
six columns
five rows
six
fundamental question
Who
When
Where
Why
How
advantage of framework
using holistic approach
combination of any logically
linked components