Guide

Closing the COBOL knowledge gap

How to understand COBOL applications quickly and pull out everything a modernization team needs.

What's inside

Why COBOL knowledge is so hard to keep
What a modernization team needs from the code
How Swimm maps a COBOL application

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White paper

Swimm vs Claude for COBOL understanding

A side-by-side look at how a general-purpose AI assistant and Swimm read a real COBOL application, and what it takes to get a complete picture of a flow.

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Primer

Shortcomings of traditional COBOL business rule extraction methods

Business rules are at the core of every mainframe application. This primer walks through the two main ways to extract them, and the trade-offs of each.

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