There are different types of project requirements, and what you decide to document will really depend on the project. Here are a few categories you might consider: Business requirements: These define the project's business needs and goals and should help you understand why this project is happening. Connected to larger business objectives, they're often tied to financial, marketing, or marketplace positioning goals. Stakeholder requirements: These requirements come directly from a project stakeholder or stakeholder group. Technical requirements: These describe specific behaviors within a technical system that must be completed to satisfy a user need. Functional requirements: If you're creating a product or system, these requirements will describe how the product or experience will function or behave. Quality requirements: These requirements set the standard for the implementation of experience, design, or code. For example, your project might have accessibility standards you must meet (e.g., WCAG AAA).