Domain Driven Development — Changing the Philosophy of Working on a Project
Keywords:
domain-driven design, bounded contexts, microservices, event-driven architecture, CQRS, autoscaling, overload control, context mapping, onboarding, runtime adaptationAbstract
The article examines domain-driven development (DDD) as a shift from technology-first delivery to business-first modeling with enforceable boundaries and contracts. The review integrates recent findings on bounded contexts, aggregate consistency, context mapping, and domain events with empirical results from microservice performance studies, event-driven pipelines, reactive execution, autoscaling, and overload control. In addition, the review positions CQRS as a complementary pattern to DDD: commands validate invariants within aggregate boundaries while queries rely on denormalized read models for independent evolution. The paper provides a decision aid for when CQRS improves throughput, traceability, and change isolation versus when a unified model remains simpler. The analysis consolidates a boundary-discovery workflow that couples collaborative modeling with data-assisted decomposition. A practitioner case with DDD reports shorter onboarding and faster delivery after establishing a stable ubiquitous language and context map. The manuscript includes an evidence-based interaction table, a governance table for documentation and operations, and a figure illustrating data-driven decomposition. The results target architects and leads who need reproducible criteria for partitioning, collaboration, runtime control, and team enablement across complex enterprise portfolios.
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