Untestable Architecture
Tightly coupled code with no dependency injection or seams makes writing tests require major refactoring first.
11 minute read
Tag: Architecture
No Contract Testing Between Services
Services test in isolation but break when integrated because there is no agreed API contract between teams.
12 minute read
Tightly Coupled Monolith
Changing one module breaks others. No clear boundaries. Every change is high-risk because blast radius is unpredictable.
10 minute read
Premature Microservices
The team adopted microservices without a problem that required them. The architecture may be correctly decomposed, but the operational cost far exceeds any benefit.
7 minute read
Shared Database Across Services
Multiple services read and write the same tables, making schema changes a multi-team coordination event.
11 minute read
Distributed Monolith
Services exist but the boundaries are wrong. Every business operation requires a synchronous chain across multiple services, and nothing can be deployed independently.
8 minute read
API Changes Break Consumers Without Warning
Breaking API changes reach all consumers simultaneously. Teams are afraid to evolve APIs because they do not know who depends on them.
3 minute read
Multiple Services Must Be Deployed Together
Changes cannot go to production until multiple services are deployed in a specific order during a coordinated release window.
4 minute read
Sprint Planning Is Dominated by Dependency Negotiation
Teams can’t start work until another team finishes something. Planning sessions map dependencies rather than commit to work.
4 minute read
A Large Codebase Has No Automated Tests
Zero test coverage in a production system being actively modified. Nobody is confident enough to change the code safely.
4 minute read
Refactoring Breaks Tests
Internal code changes that do not alter behavior cause widespread test failures.
3 minute read
Vendor Release Cycles Constrain the Team's Deployment Frequency
Upstream systems deploy quarterly or downstream consumers require advance notice. External constraints set the team’s release schedule.
3 minute read