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Service Oriented Architecture:Success story on re-engineering project

Service Oriented Architecture:Success story on re-engineering project

Business Need

The Application Landscape was quite complex considering the sheer number of applications in Trust and Agency area. With over 90 applications, mostly based on legacy technologies like Cache, Clipper, FoxPro, COBOL, CICS, JCL, VSAM, PowerBuilder etc, the Bank was facing several issues:

  • High support and maintenance cost
  • Scalability issues
  • Audit issues with legacy application

 

Challenges

 

The challenges associated with this simplification were at both the business as well as the technical level. There was limited partnership from business on this initiative. On the technology side, HCL has to re-develop a set of existing client server applications to .Net technology, maintaining the functional neutrality with the existing application.

The HCL Solution

HCL initiated the re-engineering project with the objective of:

  • Reducing overall cost of support and maintenance of 90+ Corporate Trust and Agency applications
  • Consolidating applications from legacy technologies like Visual Basic, Cache, Clipper, FoxPro, COBOL, CICS, JCL, VSAM, PowerBuilder etc. to a SOA based single technology
  • Addressing audit issue on legacy applications
  • Consolidating of infrastructure


HCL solution comprised of the following:

 

 

  • Providing browser based "thin client" (utilizing the MS .Net web services architecture) for specified existing legacy client / server and legacy monolithic (e.g. FoxPro) applications
  • Upgrade of existing MS SQL server databases (e.g., version 6.5 & 7.0) to MS SQL 2000.
  • Upgrade of existing Crystal Reports components from Crystal 8 (or lower) to Crystal 9.
  • Reengineering the upgraded applications to utilize the client's web based authentication utility, thereby replacing the current "fat client" version of that utility.
  • System Integration Testing (SIT) for all upgrades undertaken.
  • Participation in User Acceptance Testing (UAT), and production implementation.

 

 

 

Business Benefits

 

  • Migrated the fragmented multi-platform application landscape to an SOA based .Net platform, developing 23 applications on time and within budget
  • Greater business user productivity as a result of more tightly integrated system and with enhanced STP
  • Higher cost savings due to move towards a homogenous Architecture with less systems to support
  • Higher cost saving due to infrastructure consolidation
  • Reduced operational risk - easier disaster recovery

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