Part 4: AI-Assisted Legacy Code Refactoring & Modernization
Answer-first: Modernizing legacy enterprise systems with AI assistance applies the Strangler Fig architectural pattern backed by automated Golden Master characterization testing, using Abstract Syntax Tree rewriting and property-based invariant verification to safely decompose monolithic codebases into high-performance microservices without introducing functional regressions or disrupting mission-critical real-time business operations during migration phases. Prerequisite: Understanding of the Strangler Fig pattern, characterization testing, Go interfaces, and database schema migrations. 1. The Peril of Naive AI Refactoring Legacy enterprise codebases—whether written in 15-year-old PHP/Java, monolithic Ruby on Rails, or messy procedural C++/Go—are rarely accompanied by clean specifications or comprehensive test coverage. ...