Business Situation

The ability of DEWR to implement policy changes and user environments was limited by the existing mainframe systems. These legacy systems intertwined screen presentation with business logic, inhibiting the delivery of a new user experience. DEWR required a middleware architecture that could integrate existing CICS business logic into XML services, allowing new screens clients to leverage DEWR systems without understanding the implementation. The solution had to be flexible, scale to deliver high performance, and be secure.

Solution

Implement a proof of concept Integration of Architecture ESI.NET which:

• Receives an XML request over a web service from the screen delivery platform
• Communicates with multiple host systems asynchronously, and returns a consolidated response
• Contains a new corporate object model for business rules
• Secures user authentication and authorisation against Microsoft Active Directory

Results

• Sharing information between government agencies, by exposing business services thru web services
• Reduce the development cost with a black box hiding the mainframe complexity to the application developers
• Decrease the time to delivery by reusing and sharing web services across multiple delivery channels