Why Application Architecture

Posted on 06/11/2012. Filed under: Application Architecture, Enterprise Architecture, Software Architecture |

In our previous update I spoke about Business Architecture and what the value it brings.
Today we will continue with the next domain called Application Architecture (AA) – not alcoholics anonymous…J Without EA business leaders might be driven there…J
Input from previous architecture tasks will greatly aid this process. Deliverables such as architecture vision, application architecture principles etc will set the framework within which the AA can be developed.
Industry specific model can \ should also be used as input for this process, such as www.tmforum.org for the Telecommunications industry.
System and application is used as synonyms.

What is AA?
“System architecture is an abstract description of entities of a system and the relationships between those entities” – The influence of architecture in engineering systems. MIT Symposium, March 2004. http://esd.mit.edu/symposium/pdfs/monograph/architecture-b.pdf

The Goal:
To develop a target application architecture that will enable the Business Architecture and the Architecture Vision.

Typical Outputs are:
Application list
Application components diagrams
Application decomposition diagrams
AA views:
– Functionality
– Integration
– Development
– Operational concerns
– Migration
– Cross functional matrices

Connecting the dots
How many applications support business process A in HR division in the organization?
How many systems \ applications support or provide the same functionality?
What cost can be saved by removing duplicate applications providing the same functionality in the organization?

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