USER REQUIREMENTS DOCUMENT

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Information on User Requirements Document

The User Requirements Document (URD) is a seminal document in the systems engineering and requirements engineering processes. The User Requirement Document contains the requirements from the stakeholders particularly the users (operators, maintainers, trainers, marketers, etc). All stakeholders must be involved or at least considered during the development of the User Requirement Document.
     As a minimum, the User Requirement Document should reveal: applications and missions; operational characteristics; operational constraints; external systems and interfaces; operational and support environment; and support concepts and responsibilities.
     The User Requirement Document should be written in the customer’s or user’s language (as opposed to the more precise specification language).
     The User Requirement Document can also be called an Operational Concept Document (OCD); a Concept of Operation Document (COD); or a System Design Document (SDD). These names tend to have a specific application, however, and are invoked by particular standards (ANSI/AIAA G-043-1992, IEEE P1362, etc).


Other topics in our resources on Systems Engineering related to User Requirements Document include: 
 
  • Need Statement
  • Requirement Attributes
  • Requirements Analysis
  • Use Cases
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  • Requirements Validation
  • Goals And Objectives
  • Requirements
  • Requirements Management
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  • Operational Environment
  • Mission Profiles
  • States And Modes
  • Trade-Off Study

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