May 16, 2026

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Architecture: JES and Batch Processing

Every night, while the bank's tellers have gone home and the CICS transaction load has dropped to near zero, a different kind of work begins. Millions of account records are updated with interest. Every transaction from the trading day is reconciled. Customer statements are generated. Risk models are recalculated. None of this work has a user waiting for a response. None of it runs in real time. It runs in batch. Batch processing is the other… Read More
by Phee Jay
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