Articles tagged “legacy-systems”

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Bridging a COBOL Production System Without Touching It

By Marco A. Parra on Aug. 20, 2026 · 4 min read

A COBOL plant system exported fragmented flat files every night and nobody could report on them. This post walks through the integration platform that turned those exports into a normalized relational model — idempotent ingestion, transactional boundaries, and a scheduling module built on top — and what it taught me about modernizing without a rewrite.

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