ea presentation togaf

8/13/2019 EA Presentation Togaf

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Introduction to Enterprise ArchitectureEA Presentation

prepared By

Mohammed Omar Abdulrahman


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Topics: Introduction Enterprise Architecture definition Enterprise Architecture frameworks Enterprise Architecture Lifecycle Enterprise Architecture benefits Enterprise Architecture challenges Enterprise Architecture driven approach for IT strategy


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IntroductionAny 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

framework (TOGAF ,Zachman,..)


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What is Enterprise Architecture ?There are many definitions of enterprise architecture. Most focus

on structure and organization. Two definitions are given below

The organizing logic for business processes and ITinfrastructure reflecting the integration and standardization

requirements of the firms operating model.

A conceptual blueprint that defines the structure andoperation of an organization. The intent of an enterprise

architecture is to determine how an organization can most

effectively achieve its current and future objectives.


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Why do we Need Enterprise Architecture?The purpose of enterprise architecture is to optimize

across the enterprise the often fragmented legacy of

processes (both manual and automated) into an integrated

environment

. Effective management and exploitation of information

through IT is a key factor to business success, and An

enterprise architecture addresses this need, by providing a

strategic direction for IT activities.


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Enterprise Architecture frameworks What is an Architecture Framework?

It is a tool that can be used for developing a broad range of

different architectures. It should describe a method for

designing an information system in terms of a set of

building blocks, and for showing how the building blocks

fit together.

There are many enterprise-architecture frameworks none of

the enterprise-architecture methodologies is really

complete. Each has its strengths and weaknesses.

Examples : TOGAF , ARIS , ZACHMAN ,CIMOSA

, DoD


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Enterprise Architecture Lifecycle?


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Enterprise Architecture benefits Align IT with business

efficient IT operation

Better return on existing investment

reduced risk for future investment Faster, simpler, and cheaper procurement


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Enterprise Architecture challenges Many EA frameworks , how to choose best fit?

Lack of senior management support

Lack of training

Lack of patience, EA is ongoing iterative cycles.


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EA driven approach for IT strategy IT strategy should be derived or inherited from business

strategic plan which help to achieve IT / Business alignment

To do so an enterprise must develop a mature Enterprise

Architecture roadmap which help in specifying IT future

needs.


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Thank You

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