Integrating the data of a whole new company into the legacy mainframe systems usually incurs serious technical challenges. Our team was involved in all stages of several major integrations, where our role was to:
• Prepare the legacy systems to receive the new data. We executed a number of projects to expand various legacy fields, both alphanumeric and numeric types. All these projects impacted about 60-70 % of the entire legacy application.
• Perform the actual loads in a timely fashion. We prepared, tested and executed multiple data loads which significantly increased the customer, product and sales orders DB.
This on-going project includes on-call support, troubleshooting, problem determination and resolution, coding, testing, documenting and implementing production support service requests, as well as application enhancements and development needed to keep the day to day business running. The applications that we support are critical for the business being in the areas of Demand Management, Logistics/Product Distribution, Inventory/Product data, Finance.
We were involved in two major initiatives for upgrading mainframe legacy applications:
• Ca Gen (IEF) upgrade from version 5.1 to version 8.5. This also involved the installation of the new Enterprise COBOL 4.2. Our part was to perform necessary code changes for version compatibility, create the Endevor infrastructure for the new COBOL compiler, install the new CA Gen Host Encyclopedia, migrate the CA Gen models, generate and compile the entire application, execute test plan, deploy to production.
• COBOL upgrade from COBOL II to Enterprise COBOL 4.2. We re-compiled all legacy COBOL source code with the new compiler, performed code changes when necessary, executed the test plan and implemented to production.
We are involved in several migration projects from Mainframe applications to Oracle EBS. Our contribution are to write the technical documentation of the mainframe application that is about to migrate, create new interfaces between the remaining applications and the migrated ones, export and describe the data from legacy application, decommission old application and post go live support.