E.G. Nadhan is the Chief Architect for Applications Modernization in EDS.  He has over 23 years of experience in software architecture and engineering.  In this role, Nadhan has engineered multiple offerings through the EDS Concept-To-Offer process that involves the architecture and delivery of standardized solution frameworks promoting consistency in which EDS services are sold and delivered to customers.  Nadhan works with a team of Enterprise Architects from Applications, Business Process and Infrastructure Service Lines, to define and validate the Process, Logical, Physical and Deployment architecture for the offering components.  As one of the Chief Architects within Applications Portfolio Development, he also defines and approves the EDS position on its Technology Policy that provides prescriptive guidance on various technologies.  Nadhan applies the foundational tenets of the EDS Agile Application Architecture prescribed by EDS while architecting offerings.  Nadhan is a Master-certified IT architect by The Open Group and an EDS Distinguished SE.

Presentation
Enterprise Architecture for Applications Modernization
Effective modernization of legacy applications within an enterprise requires a clear focus on the current and future state of the underlying architecture not only from an applications standpoint but also from an infrastructure perspective as well.  This initiative must be led by analysis of the core business processes being considered for modernization with subsequent analysis of the impact on the enabling components .  Thus, the architectural domain for modernizing an application is more than the application itself.  This domain must include at an enterprise level:
a) the complete portfolio of applications,
b) the business process architecture,
c) the infrastructure architecture,
d) the data architecture,
e) security architecture while exercising appropriate architectural governance across the enterprise.  

In the absence of a well-defined enterprise architecture, the individual initiatives to modernize one or more applications will not consistently yield the desired results.  Hence, the need for an: Enterprise Architecture for Applications Modernization.

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