How to Write an Effective Software Design Document (opens in new tab)

A good design doc can save you years of development time. Writing a design doc forces you to think through important decisions before you waste time on the wrong implementation or paint yourself into a corner. It’s also the best way to coordinate design decisions among teammates and partner teams. I’ve written design docs as a developer at Google, Microsoft, and within . The specifics vary, but the underlying principles remain the same. A design doc should articulate the hard problems you’re ...