SytemengineersA.read them to check that they meet their needs. Customers specify changes to the requirements.Use the requirements to understand the system and the relationships between itsManagersparts.Use the requirements to understand what system is to be developed.SyntemcustomersCUse the requirements to develop validation tests for the system.System test engineersD.System maintenanceUse the requirements document to plan a bid for the system and to plan the system development process.