Overview
IEC PAS 63485:2023 - Intelligent Information Request and Delivery defines a process model and metadata framework for electronic request-and-delivery of information for use. Targeted at creators of technical information (for example, information architects and technical communicators), the PAS addresses how to connect real-world objects and their digital twins to the right instructional, operational or maintenance information in dynamic, automated environments such as smart manufacturing, Industry 4.0, and the Industrial Internet of Things (IIoT). The document specifies an information flow (Clause 6), a metadata model (Clause 7) and a set of core metadata (Annex A) to enable interoperability and real‑time delivery across multiple providers and consumers.
Key topics and requirements
- Information flow model (Clause 6): Defines standardized processes for requests and deliveries so systems can discover and retrieve information on demand.
- Metadata model (Clause 7) and core metadata (Annex A): Prescribes classification and types of metadata (e.g., product metadata, information type metadata, functional and administrative metadata) to enable precise matching between information requests and available resources.
- n:m relations without explicit agreements: Supports many-to-many relationships between information sources and consumers where no prior contract or API agreement exists.
- Match at the interface: Considers coding levels (content, descriptive code, packaging), shared metadata and shared semantics to ensure interoperability.
- Quality and fulfilment: Addresses the quality attributes of “intelligent information” (Clause 5) and conditions for fulfilling requests.
- Scenarios and examples (Annex B): Includes practical scenarios such as self-service information, automated integration of OEM documentation, multiple source utilization, and exchanging DITA content using iiRDS.
Applications
IEC PAS 63485 is practical for systems and processes that require on-demand, context-aware delivery of technical information:
- Dynamic operator assistance for machines and plants (digital twin integration)
- Automated maintenance and troubleshooting workflows in smart factories
- Self-service portals and mobile help systems that deliver component- or task-specific instructions
- Content providers and repositories exposing searchable, semantically tagged information to downstream consumers
- Integrations between authoring tools, content management systems, and field systems using iiRDS or similar metadata ontologies
Who should use it
- Information architects and technical communicators
- Content and knowledge managers
- Product data and digital twin engineers
- System integrators and IIoT platform architects
- OEMs and aftermarket service providers
Related standards
- IEC/IEEE 82079-1:2019 (information for use principles)
- iiRDS (International open source standard for Intelligent Information Request and Delivery)
- IEC 61355-1 and IEC 62656 series (document/product classification and ontologies)
By adopting IEC PAS 63485:2023, organizations can improve discoverability, accuracy, and timeliness of technical information-reducing downtime, improving safety, and enabling scalable information exchanges in Industry 4.0 ecosystems.