What question did this study set out to answer?

The aim is to provide an overview of Spec-Driven Development and its key components for English-speaking audiences.

June 28, 2026Open Access

Spec-Driven Development: A Concise Overview — An English-Language Primer on a Methodology that Treats the Specification as the Primary Artifact

Key Points

The aim is to provide an overview of Spec-Driven Development and its key components for English-speaking audiences.
Overview of Spec-Driven Development as presented in the Japanese book
Summary of the methodology's three technical elements, four principles, and seven processes
Establishes foundational knowledge for English speakers on Spec-Driven Development
Directs readers to the comprehensive Japanese text for in-depth understanding

Abstract

This paper is a concise, English-language overview of Spec-Driven Development (SDD), a software development methodology that treats the specification as the primary artifact—the living documentation itself—from which code and tests are derived, with humans determining intent and AI and tools performing generation. SDD is systematized in the Japanese book "Spec-Driven Development: A Practical Introduction" (Nikkei BP, 2026); because that full treatment is currently available only in Japanese, this primer is intended to give English-speaking readers the foundation needed to follow it—and, in particular, to serve as the foundation for a companion paper that proposes Spec-Driven Architecture. This paper summarizes SDD through its Three Technical Elements, its Four Principles, and its Seven Processes, and points readers to the book for the complete account.

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