Separate Documentation

Separate Documentation is a software development methodology that advocates for maintaining documentation as a distinct, standalone artifact rather than embedding it directly within the source code. It involves creating external documents, such as wikis, README files, or dedicated documentation sites, to describe system architecture, APIs, user guides, and other project details. This approach aims to provide comprehensive, accessible, and maintainable information for developers, users, and stakeholders.

Also known as: External Documentation, Standalone Documentation, Doc-as-Code Alternative, Separate Docs, SD

Why learn Separate Documentation?

Developers should use Separate Documentation when working on complex projects that require detailed explanations beyond what code comments can provide, such as for large-scale systems, public APIs, or user-facing applications. It is particularly valuable in collaborative environments where non-technical team members or external users need clear guidance, as it centralizes information and reduces reliance on codebase familiarity. This methodology helps improve onboarding, reduce technical debt, and ensure consistency across documentation.

Learning Resources

• docs: Write the Docs Guide
• docs: Documentation Best Practices by Google
• tutorial: Separate Documentation vs. Documentation as Code
• course: Technical Writing Course on Coursera
• video: Documentation in Software Development - YouTube