Documentation in software engineering is the umbrella term that encompasses all written documents and materials dealing with a software product’s development and use.On top of that, documentation errors can set gaps between the visions of stakeholders and engineers and, as a result, a proposed solution won’t meet stakeholders expectations. Consequently, managers should pay a lot of attention to documentation quality.

Product documentation describes the product that is being developed and provides instructions on how to perform various tasks with it. Product documentation can be broken down into:

• System documentation
• User documentation

System documentation represents documents that describe the system itself and its parts. It includes requirements documents, design decisions, architecture descriptions, program source code, and help guides.

User documentation covers manuals that are mainly prepared for end-users of the product and system administrators. User documentation includes tutorials, user guides, troubleshooting manuals, installation, and reference manuals.