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DDD and Vertical Slice Architecture Are Friends, Not Rivals

May 9 · 15 min read · A lot of Developers talk about Domain Driven Design and Vertical Slice Architecture as if they are competing choices. They're really not. DDD helps you model the business. Vertical Slice Architecture

NZNick Zykovcorner4.dev

Reinventing Payment: How I Evolved a Domain Model from One Table to DDD

Apr 15 · 28 min read · Every payment system starts the same way: one table, one provider, ship it. Then the second provider arrives. Then retry logic. Then partial refunds. Then you realize the model you built on day one is

Introducing Moment and Facet: Your Domain Model Deserves to Run Before Your Code Does

Apr 5 · 8 min read · You changed a field. Three downstream services broke in production. Nobody saw it coming — not the type checker, not the tests, not the code review. The contract between your service and theirs was ne

AI Made My Architecture Deeper, Not Simpler

Mar 29 · 9 min read · The pitch is always simplification. AI will make development faster, architectures leaner, systems easier. Fewer decisions, fewer layers, fewer meetings. Point the model at your domain, let it generat

The Classification Gap: The Bug That Passes Every Test

Mar 29 · 7 min read · There's a class of domain modeling error that no test catches. No structural analysis flags it. No linter complains. Your gap report comes back clean. Your aggregate has the right number of invariants

FRFelipe Rodriguesblog.felipefr.dev

Domain-Driven Design in Microservices

Mar 23 · 12 min read · The software industry has spent the last decade chasing the microservices dream, often with disastrous results. We were promised independent scaling, rapid deployment cycles, and decoupled teams. Instead, many organizations ended up with a distribute...

The Gap Report: DDD's Missing Feedback Loop

Mar 22 · 11 min read · In Post 4, I introduced Signal-Driven Development and its core claim: DDD has never had a definition of done. SDD provides one — zero unresolved gaps across a structured convergence process. But I lef

When Jobs to Be Done Meets Domain-Driven Design

Mar 22 · 8 min read · There are moments in practice where two ideas you've held separately for years suddenly click together — not because someone told you they were connected, but because you were working through a proble

The Candidate Lifecycle: When AI Models Your Domain, Who Confirms It?

Mar 22 · 11 min read · This post marks a shift. Posts 1 through 5 gave away a methodology — Signal-Driven Development, the gap report, the three-pass convergence process. That was the community gift. Use it, fork it, adapt