Guides
White papers and primers on legacy code.
Practical reading on COBOL, business rules and modernization, from the people who map these systems every day.
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.
Get the white paper
Guide
Closing the COBOL knowledge gap with Swimm
How to understand COBOL applications quickly and pull out everything a modernization team needs.
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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.
Get the primerOur open-source case studies will be published here as white papers, starting with Apache OFBiz.
Want this done on your own code?
30 minutes with our team. Bring the system you have in mind.