Hardware Requirements
Section 09: Hardware Certification (DO-254)
Definition
The set of documented conditions, capabilities, and constraints that the hardware item must satisfy, derived from system-level requirements through the system safety and requirements allocation processes. Hardware requirements include functional requirements, performance requirements, interface requirements, environmental requirements, and safety requirements allocated from the system level.
Where This Shows Up
Hardware requirements form the basis for the entire DO-254 design and verification process. They are captured in the Hardware Requirements Specification (HRS) or equivalent document. Requirements must be verifiable, unambiguous, and traceable to higher-level system requirements. The quality of hardware requirements directly impacts the effectiveness of the verification process and the completeness of the certification evidence.
Primary Sources
Section 5.1 — Requirements Capture process, defines the activities for establishing and documenting hardware requirements.
Development of Civil Aircraft and Systems — provides the system-level framework from which hardware requirements are derived.
Artifacts Produced
Document containing the complete set of requirements for the hardware item, including functional, performance, interface, and safety requirements.
Related Terms
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