How to Extract Modules Without Wasting Millions

Research shows 67 to 79 percent of application modernization projects fail. The pattern itself works. Leadership fails because they won't treat the extraction as a finite project with a hard deadline and a change freeze. Companies end up running three systems: the old one, the new one, and a brittle sync layer between them.

Form the team from existing employees. Define a clean interface compatible with the legacy system. Build the module as a standalone unit. Route traffic through a proxy and cut the old code. Treat it as a surgical operation with a clear finish line. Running two systems in parallel means maintaining three implementations for the price of one customer.