LEA introduction in the Toolbox for IT by Akshaya Bhatia
Mar 04, 2009
Light Enterprise Architecture (LEA) is a pragmatic, innovative, light weight and fast track enterprise architecture model developed and documented by an eminent enterprise architect John Wu.
The LEA immaculately blends cohesive system modeling endeavors encapsulating study of business architecture and analysis of system architecture using appropriate system segmentation by way of an agile approach aiming at development of a business enterprise based on technology alignment with the business.
Although the LEA model borrows some concepts from other well known EA models such as Zachman Framework, TOGAF ( The Open Group Architecture Framework), PRISM (Partnership for Research in Information Systems Management) Architecture Framework, Gartner approach to EA, FEA (Federal Enterprise Architecture)-US etc. , it is, per-se, a pragmatic, innovative and unique approach in many ways owing to it’s emphasis on agility along with mapping technology solutions for maintaining a flexible and strategic thrust on business alignment in sight of continuously evolving business enterprise.
Just like most of the popular EA models in vogue, the LEA model also caters in extenuating the complexity involved in system design process so as to make an appropriate use of technology in implementation of business processes such that business goals of the enterprise are fulfilled, albeit with a relatively less emphasis on building from scratch and more emphasis on building upon the existing framework by application of agile approach and characteristically looking for a cross cutting approach based on loose coupling.
Key idea is to follow a structured approach by identifying commonality (patterns) amongst the attribute values of the sub-systems , deciphering the bottlenecks or business performance gaps among the business segments and plugging in the gaps by visualizing through business plus data plus application architectures.
Furthermore, the LEA encourages reuse and consolidation of application system architecture for enterprise application integration with service oriented loose coupling and appropriate built-in security, iteratively through the various layers of architectures (business,data,application) and thereby obliterating existence of the stove pipes systems.
Pragmatically speaking, if applied appropriately, the LEA model can bring in application of technology as an investment and value addition to a business.