Writing on legacy modernization

Engineering deep-dives and strategic analysis on legacy modernization. New post every week.

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Technical deep-dives

COBOL to Java migration cost: what actually drives the number

Aug 31 • 14 min read

Latest post

How long does a COBOL to Java migration take?

Aug 31 • 13 min read

Is automated COBOL to Java conversion reliable?

Aug 30 • 14 min read

Rehost, refactor or rearchitect: choosing a mainframe modernization strategy

Aug 29 • 13 min read

Why mainframe modernization projects fail

Aug 28 • 14 min read

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Technical deep-dives

93% Accurate Is a Failing Grade for COBOL Translation

Vendors claim 93% COBOL-to-Java accuracy. On 5 million lines, that is 350,000 wrong ones. Where AI genuinely helps, and how to prove code equivalence.

2026-028-26 • 13 min read

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Writing on legacy modernization

COBOL to Java migration cost: what actually drives the number

Latest post

All Blogs

93% Accurate Is a Failing Grade for COBOL Translation

Start with the code you thought could not move.