Legacy Software: Really a Problem?
summary
Legacy software usually already solves a business problem so migration must deliver new business value rather than just replace technology. Teams estimate full rewrites as long as 89 months and therefore should use stepwise approaches like the Strangler Fig pattern, pick migrations driven by specific requirements, and prioritize quick wins such as speeding up slow CI/CD pipelines. Practical options include COBOL cross‑compilers to reduce risk, and designing services with replicated bounded‑context data so new features and reporting can be added incrementally.
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