Despite the growing use of web-based applications most application code are still written in legacy languages like Cobol, CICS, RPG or Natural/Adabas. In many cases such applications still perform critical high-value business functions.
Business rules are often embedded in the code. Meanwhile users want more functionality from their application but are constrained by the limitations of the legacy platform. It’s time to modernize the application.
Some of the approaches we use are:
Re-hosting: moving the application from one operating system to another without major changes in the code
Code rewrite: translating legacy code to a modern language while keeping the functionality unchanged
Reengineering: extracting the functional specifications from the code and designing a functionally equivalent system
Re-architecting: redesigning an application to conform to Service Oriented Architecture (SOA)
Replacement: acquiring and customizing a commercial software package or developing a new system from scratch
- Legacy code is rewritten into modern languages such as Java Enterprise Edition
- The new system is functionally equivalent to the legacy version
- The modernized application runs on inexpensive servers and operating systems;
option to run on a cloud
- Applications can run on the web and can enrich the user experience. Maintenance and support skills are easier to find
- Critical business rules remain intact; change management is easier
- Cost savings for data center; can start small and then scale up later