Type: url
Original: https://www.cnblogs.com/studyzy/p/19638317
Status: generated
Summary
A Chinese-language long-form post on the 深蓝居 blog (February 2026) that defines spec-driven development as a methodology treating the specification as the primary artifact driving design, implementation, verification and evolution. It proposes a five-layer execution model, traces SDD through formal methods, design by contract, TDD/BDD and interface specifications to AI-driven SDD, distinguishes spec-as-source, spec-anchored and spec-first schools, positions SDD as a meta-methodology over TDD, BDD and DDD, and contrasts Spec-Kit’s heavyweight with OpenSpec’s lightweight workflow.