Win in the flat world

Microsoft

Legacy Modernization

Modernize and Scale

 

Infosys' Legacy Modernization solution provides enhanced flexibility by modernizing and migrating legacy systems, architectures and processes. It brings down the cost of running business and fuels growth.

 

Your legacy systems, architectures and processes may be slowing you down
A significant part of the world's data resides in mainframes and is accessed by COBOL systems. CIOs and IT managers responsible for mainframe-based enterprise applications face challenges such as:
  • High cost of maintaining and upgrading legacy systems
  • Risks associated with running business-critical applications on potentially unsupported hardware and software
  • Inflexible and closed architectures hindering web-enabling and integration with contemporary platforms
  • Tightly coupled business processes that prevent you from adapting to changing business requirements
  • Longer time-to-market resulting from complex development lifecycles and a lack of productivity tools
  • Demographic issues relating to shrinking labor pool expertise on legacy systems
  • Higher SLA time for customers due to non-real-time architecture (i.e. batch systems) options.

 

Legacy - Retire, manage or transform?
Infosys has done extensive research to identify rectification techniques. To compare these techniques, we have formulated a framework to evaluate the risks vs. benefits of each of these techniques. (See table)

 

Technique Description
Rehosting Non-invasive approach of deploying legacy application on a contemporary platform to reduce high maintenance cost of applications on legacy platforms.
Re-engineering Rebuilding legacy applications on new technology/platform with the same or enhanced business functionality in a Service-Oriented Architecture.
Integration Unlocking of data in a service-oriented approach from closed architecture legacy systems to provide new access channels.
Package implementation Legacy applications are replaced with modern, off-the-shelf packages or ERP software.

 

 

Infosys' Legacy Modernization methodology We believe that none of the above techniques is a one-size-fits-all solution for the entire application portfolio. The task of balancing the risks vs. benefits involves careful analysis of the application portfolio and arriving at a mix-and-match modernization strategy. Infosys has generated IP around strategies for modernization.

 

Infosys' Legacy Modernization methodology consists of two broad phases: Assessment and enactment.

 

 

 

 

Benefits

 

  • Reduced cost Lowers high maintenance cost of existing legacy platforms, resulting in substantial savings in IT budgets.
  • Enhanced flexibility Creates a flexible IT environment with new architectural paradigms such as SOA and aligns IT systems to dynamic business needs.
  • Minimized disruption Eases risk in modernizing legacy platforms by combining the experience of working on legacy systems for more than two decades with contemporary platforms, a proven modernization framework and rich domain knowledge.

 

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