Commission calculation system for brokers

The system is integrated into the bank's own user interface and it is implemented on multiple levels. Part of the business process logic and the data storage is implemented on the host, the other part is implemented on the decentralized components. A proprietary persistence layer provides for data exchange between host modules and decentralized components. Data is stored in a DB2 database. All the host programs affected by the enhancement are written in COBOL. Batch modules created with CA-TELON are responsible for accessing data. Database changes resulting from the expansion require legacy data to be migrated. This migration also takes place on the mainframe with the help of COBOL programs.