System Requirements (spacecraft System) - System Specification Structure

System Specification Structure

A typical industry generated system specification for a spacecraft has the following structure:

  • Document change record
  • 1. Scope
    • 1.1 Purpose
    • 1.2 Summary description
    • 1.3 Classification
    • 1.4 Applicability
  • 2. Related documents
    • 2.1 Applicable documents (incl. order of precedence)
    • 2.2 Reference documents
  • 3. Functional /Performance Requirements
  • 4. Support requirements
    • 4.1 Product assurance
    • 4.2 Electro-magnetic compatibility
    • 4.3 Contamination
    • 4.4 etc.
  • 5. Interface requirements
    • 5.1 System interfaces
      • 5.1.1 Launcher
      • 5.1.2 Ground stations
      • 5.1.3 etc.
    • 5.2 Subsystem interfaces
      • 5.2.1 Electrical power
      • 5.2.2 Data
      • 5.2.3 etc.
  • 6. Implementation requirements
    • 6.1 Configuration
    • 6.2 Budget Allocations
      • 6.2.1 Mass
      • 6.2.2 Electrical power
      • 6.2.3 etc.
  • 7. Preparation for delivery
  • Attachments (Abbreviation list etc.)

Each requirement paragraph consists of the requirement to be fulfilled by the product to be delivered and the verification requirement (Review of design, analysis, test, inspection).

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