System Overview
CardDemo Credit Card Management System
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About
CardDemo is a mainframe COBOL application ported to GnuCOBOL, demonstrating credit card account management. Originally built for AWS Mainframe Modernization testing, it runs batch and online programs against ISAM indexed files.
Architecture
BackendGnuCOBOL + Node.js API
Data StorageISAM Indexed Files
FrontendNext.js + Tailwind