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Functional Safety Standard
UL 1998
UL 1998: Standard for Software in Programmable Components
Official DocumentationOverview
UL 1998 provides requirements for the development, analysis, and testing of software in programmable components used in safety-related control systems.
Scope
Applies to software in programmable components used as part of a safety-related control system. Covers software lifecycle from requirements to testing.
Key Requirements
1 Software requirements specification
2 Software architecture design
3 Risk assessment for software
4 Coding standards and practices
5 Code analysis and review
6 Software testing methodology
7 Modification control
8 Documentation requirements
9 Verification and validation
Target Audience
Embedded software developers
Programmable component manufacturers
Control system engineers
Software quality assurance personnel
Safety-critical system developers
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