Post on 05-Jul-2018
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CHAPTER 1Introduction to Enterprise
Architecture
prepared By
MUHAMAD ROSTA BI !A"ARIA
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#hat $e %earn on this chapter is&
Introduction' Enterprise Architecture de(nition'
Enterprise Architecture )ra*e$or+s' Enterprise Architecture ,i)ecyc%e' Enterprise Architecture -ene(ts
Enterprise Architecture cha%%en.es Enterprise Architecture dri/en
approach )or IT strate.y'
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Introduction
Any Enterprise can achieve good Maturity level in its IT
operation and services if they have the following
1. The clear mission and vision that adopt ICT as success
factor
2. Management support and commitment to the Enterprise
mission and vision3. The adoption of an Enterprise Architecture standard
framewor !T"#A$ %&achman%'..(
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#hat is EnterpriseArchitecture 0There are many definitions of enterprise architecture. Most focus
on structure and organi)ation. Two definitions are given *elow
The organi)ing logic for *usiness processes and ITinfrastructure reflecting the integration and standardi)ation
re+uirements of the firm,s operating model.
A conceptual *lueprint that defines the structure andoperation of an organi)ation. The intent of an enterprise
architecture is to determine how an organi)ation can most
effectively achieve its current and future o*-ectives.
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Continued…
A Enterprise is a collection of organizations that share acommon set of goals: Government
Part of a corporation
Corporation.Large corporations may comprise multiple enterprise. May e an
e!tended enterprise including partners" suppliers and customers.
An Architecture is the fundamental organization of something"emodied in:
#ts components
$heir relationship to each other and the environment
And the principals governing its design and evolution.
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#hy do $e eed EnterpriseArchitecture0
$he purpose of enterprise architecture is tooptimize across the enterprise the oftenfragmented legacy of processes %oth manual andautomated& into an integrated environment
. E'ective management and e!ploitation ofinformation through #$ is a (ey factor to usinesssuccess" and An enterprise architecture addressesthis need" y providing a strategic direction for #$
activities.Two ey reasons why you need an enterprise architecture
/Critical to *usiness survival and success
/Ena*les managed innovation within the enterprise.
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Continued..
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C)*$#*+E,…
$-E E*E/#$0
BUSIESS BEEITS IT BEEITS
-elps an enterprise achieveits usiness strategy
#ncreases the e1ciency ofusiness and #$ operations
0hortens time to mar(et forne2 innovations andcapailities
Provides etter return one!isting investment
Provides consistent usinessprocess and informationacross usiness units
3educes ris( for futureinvestment
#mprove reliaility andsecurity" and reduce ris(
Ensures faster and simplerprocurement
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Continued…
A more efficient business operation:
Lower business operation costs
More agile organization
Business capabilities shared across the organization
Lower change management costs
More flexible workforce Improved business productivity
A more efficient I operation:
Lower software development! support! and maintenance costs
Increased portability of applications
Improved interoperability and easier system and network management
Improved ability to address critical enterprise"wide issues like security
#asier upgrade and exchange of system components
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Continued..
Better return on existing investment! reduced risk for future investment:
$educed complexity in the business and I
Maximum return on investment in existing business and I infrastructure
he flexibility to make! buy! or out"source business and I solutions
$educed risk overall in new investments and their cost of ownership
%aster! simpler! and cheaper procurement: Buying decisions are simpler! because the information governing procurement is readily
available in a coherent plan
he procurement process is faster " maximizing procurement speed and flexibility without
sacrificing architectural coherence
he ability to procure heterogeneous! multi"vendor open systems
he ability to secure more economic capabilities
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Enterprise Architecture )ra*e$or+s
0hat is an Architecture $ramewor
It is a tool that can *e used for developing a *road range of
different architectures. It should descri*e a method for
designing an information system in terms of a set of
*uilding *locs% and for showing how the *uilding *locs
fit together.
There are many enterprise/architecture framewors none of
the enterprise/architecture methodologies is really
complete. Each has its strengths and weanesses.
Eamples T"#A$ % AI4 % &AC5MA6
%CIM"4A % 7o7
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$)GA/
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4AC-MA*
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-o2 ,oes EA 3elated to Ma5or #$/rame2or(s6
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Enterprise Architecture ,i)ecyc%e0
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Enterprise Architecture cha%%en.es
Many EA framewors % how to choose *est fit
8ac of senior management support
8ac of training
8ac of patience% EA is ongoing iterative cycles.
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EA dri/en approach )or IT strate.y'
IT strategy should *e derived or inherited from *usiness
strategic plan which help to achieve IT 9 :usiness alignment
To do so an enterprise must develop a mature Enterprise
Architecture roadmap which help in specifying IT future
needs.
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$han( 7ou