Architect's Journey

Dec 10, 2025 · Industry Insights

Vibe Coding vs Spec‑Driven Development: From Rapid Prototyping to Sustainable Code

The article compares AI‑assisted "Vibe Coding"—which boosts short‑term productivity but introduces intent misalignment, black‑box code, and maintenance debt—with Spec‑Driven Development (SDD), which restores controllability, quality, and collaboration through formal specifications, illustrated by real‑world case studies, a four‑layer ISPI model, and an emerging tooling ecosystem.