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Enterprise Architecture Matters

Adrian Grigoriu

Why do we need architecture?

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A question still often asked today, is why do we need enterprise architecture. It is intriguing though that, more often than not. the architects are asking the question.

But first, let me ask and answer a few related questions:

Why do we need anatomy to describe the human body?  Why do we need the schematics of a car?

To understand and mend it properly.

Why do we need the architecture (map) of a city? 

To travel around, find points of administration, business and interest.

Why do the builders need the map of the city? 

To find out where the existing city facilities, utilities and transports are to be able to construct the building on a proper site and interconnect it to the usual utilities and roads. 

To change, add and update the many underground systems of cables, pipes... while avoiding break the existing ones, eventually from another utility provider.


The architecture is the structure and description of a system/enterprise.

It enables the implementation, understanding, maintenance, repair and further development of a system/enterprise. 

The architect describes a system (enterprise) in an architecture in order to enable its usage, fixing, building and further development.

The architect specifies the architecture,  which essentially consists of a set of integrated blueprints,  starting from requirements and past cases.

The designers/engineers though, take over the blueprint from the architect to further design (the parts of) the architecture to the detail necessary for implementation, proper usage, maintenance and further development.

The architecture describes primarily the current system/enterprise.

It may also describe the target system/enterprise in order to visualise its end state.

The architecture is employed in the process of enterprise transformation to ensure that projects are aligned in an enterprise wide portfolio covering all enterprise entities, the business and technology issues and their dependencies.

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Adrian Grigoriu blogs about everything relating to enterprise and business architecture, SOA, frameworks, design, planning, execution, organization and related issues.

Adrian Grigoriu

Adrian is an executive consultant in enterprise architecture, former head of enterprise architecture at Ofcom, the spectrum and broadcasting U.K. regulatory agency and chief architect at TM Forum, an organization providing a reference integrated business architecture framework, best practices and standards for the telecommunications and digital media industries. He also was a high technology, enterprise architecture and strategy senior manager at Accenture and Vodafone, and a principal consultant and lead architect at Qantas, Logica, Lucent Bell Labs and Nokia. He is the author of two books on enterprise architecture development available on Kindle and published articles with BPTrends, the Microsoft Architecture Journal and the EI magazine. Shortlisted by Computer Weekly for the IT Industry blogger of the year 2011.

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