What are user requirements ?

User Requirements Specification describes what users require from the System. User requirement specifications are written early in the validation process, typically before the system is created. It is written by the System Owner and End Users, with input from Quality Assurance. Requirements outlined in the URS are usually tested in the Performance Qualification. User Requirements Specifications are not intended to be a technical document; readers with only a general knowledge of the system should be able to understand the requirements outlined in the URS.