Architecture: CICS Web Services

A mortgage application arrives from a bank's customer portal. The portal is a modern React application running on a cloud server. The actual mortgage logic, the eligibility rules, the rate tables, the credit assessment, lives in a COBOL program in a CICS region that has been running, battle-tested, for twenty years. The two systems need to talk. Rewriting the COBOL program is not on the table. Rewriting the portal to speak CICS protocols is n… Read More