ISO 14813-5:2020

Overview

ISO 14813-5:2020 - Intelligent transport systems (ITS) - Part 5: Requirements for architecture description in ITS standards - defines how ITS reference architectures and the interfaces between their elements should be documented in ITS standards. The document provides a consistent vocabulary, documentation rules and required architecture description elements so that ITS interface standards are easier to interpret, compare and apply across different deployments and technology generations. This second edition (2020) replaces the 2010 edition and clarifies scope, architecture types, and required content for ITS interface standards.

Key technical topics and requirements

• Architecture description requirements: mandates that ITS standards which define interfaces include an explicit architecture description (architecture scope, services, views and models).
• Viewpoints and views: specifies use of multiple viewpoints (notably functional, physical, and communications viewpoints) and corresponding views to address stakeholder concerns and interface behavior.
• Levels of abstraction: addresses planning/high-level (reference) architectures vs deployment or design-level architectures and the expected level of detail for standards.
• Architecture description elements: requires documentation of architecture scope, ITS services supported, functional view of interfaces (processes and data flows), physical view (physical objects, assignment of functions) and communications view (OSI layers, messaging and security considerations).
• Terminology and usage of terms: prescribes consistent terms to reduce ambiguity when standards reference ITS architecture elements.
• Conformance and normative references: aligns with contemporary systems engineering practices and references ISO/IEC/IEEE 42010 and other relevant standards for modeling and metadata.

Practical applications

• Create consistent, interoperable ITS interface standards that are understandable across stakeholders and implementation contexts.
• Improve specification clarity for vendors, integrators and procurement teams by linking interface details to an explicit reference architecture.
• Facilitate migration and evolution of ITS services by documenting architecture-level intent and constraints rather than only design-level specifics.
• Support validation, testing and certification activities by providing architecture-based context for interfaces and protocols.

Who should use ISO 14813-5:2020

• Standards developers and technical committees producing ITS interface or protocol standards
• System architects and engineers designing ITS solutions (V2X, traffic management, public transport systems)
• Vendors, integrators and implementers of ITS components
• Procurement officers, policy makers and certification bodies evaluating ITS interoperability and compliance

Related standards

• ISO/IEC/IEEE 42010 (architecture description)
• ISO 14813 series (other parts covering ITS reference model architectures)
• Relevant ITS interface, data and communications standards (for model kinds, metadata and ASN.1 / UML conventions)

Keywords: ISO 14813-5:2020, ITS reference architecture, architecture description, intelligent transport systems, ITS standards, interface documentation, functional view, physical view, communications view, interoperability.