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All software development products, whether created by a small team or a large corporation, require some related documentation. And different types of documents are created through the whole software development lifecycle (SDLC). Documentation exists to explain product functionality, unify project-related information, and allow for discussing all significant questions arising between stakeholders and developers.

The documentation types that the team produces and its scope depending on the software development approach that was chosen. There are two main ones: agile and waterfall. Each is unique in terms of accompanying documentation.

The Waterfall approach is a linear method with distinct goals for each development phase. Teams that use waterfall spend a reasonable amount of time on product planning in the early stages of the project.

The agile approach is based on teamwork, close collaboration with customers and stakeholders, flexibility, and ability to quickly respond to changes.

The basic building blocks of agile development are iterations; each one of them includes planning, analysis, design, development, and testing. The agile method doesn’t require comprehensive documentation at the beginning.