A Rational RequisitePro requirement type is a category of requirements and its associated set of descriptive and operational characteristics. Examples of requirement types include features, use cases, supplementary requirements, and glossary terms.
A requirement type serves as a template for all requirements of the same type and is useful for classifying or grouping similar requirements in a project. Each requirement type has a unique set of attributes defined by the system or administrator. In addition, the requirement type specifies the requirement tag prefix (such as FEAT, UC, SUPP, and GLOSS), text color, and text style.