The most expensive sentence in software is "let's just rewrite it." The second most expensive is "let's keep patching." Here is the framework we use to choose — based on evidence, not instinct.
The previous vendor stopped. The lead developer left. The acquisition closed. However it happened, you now own a system you don't understand — and it's running your business. A field guide to the first 30 days.
Why assembling your systems from interchangeable, reusable modules beats another monolithic rewrite — and where microservices and Domain-Driven Design fit in your adoption plan.
A balanced, evidence-backed guide for CTOs: when a well-structured monolith wins, when microservices pay off, and how the strangler fig pattern and DDD bounded contexts turn a risky rewrite into a managed evolution.