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How to write User Requirement Specification?

The User Requirement Specification (URS) is a document prepared by the buyer of equipment, Instruments, Software, or applications to describe precisely the required attributes of the system’s requirements from the end user’s perspective.

What is URS User Requirement Specification?

  • Essential System Life cycle document.
  • Reflects the requirement of the user for the establishment of the computerized system
  • Define the functionality of the system
  • Prepared to depict all essential requirements to maintain compliance
  • Primary documentation to start the validation approach
  • Build a relationship with user requirements and regulatory compliance.

Requirements of URS to CSV

  • Guidance on Validation of Computerized system
  • Track the requirement concerning Quality/Regulatory/ Business
  • Provide clear, concise, and detailed requirements for a computer system
  • It helps to understand stakeholders from the system and provides the basis for testing and verification

Computer System Validation | How to write URS? | User Requirement Specification |

Components of User Requirement Specification (URS):

    Requirement Category   Description
    General and Business RequirementsHigh-level goals and objectives of the system.
    Regulatory RequirementsSpecific compliance needs, such as 21 CFR Part 11.
    Operational RequirementsFunctions necessary for system operation and maintenance
    Functional RequirementsDetailed capabilities the system must provide
    Data RequirementsHandling of electronic records, data integrity, and security.
    Technical RequirementsHardware and software specifications, capacity, and performance
    Security RequirementsAccess control, authorization, and data protection
    Interface RequirementsInteraction with users and other systems
    Environment RequirementsPhysical and operational conditions for system use.
    Performance RequirementsEfficiency, speed, and reliability metrics
    Validation RequirementsTesting and verification standards

    Do’S and Don’t’s when writing User Requirement Specification (URS)

    • Try to avoid generic statements in the explanation of your requirements.
    • Check whether your requirement is practically achievable and executable during your routine operation.
    • Better to use regulatory guidelines in reference during the creation of your requirement.
    • Check whether all your requirements are captured in your URS.
    • Do consider all your process steps during the creation of URS.

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