SIST EN ISO 12967-2:2021 PDF

Overview

EN ISO 12967-2:2020 - Health informatics - Service Architecture (HISA) - Part 2: Information viewpoint - defines the information model for the HISA service architecture layer. The standard specifies the fundamental characteristics and organization of common enterprise data needed to support core healthcare business processes. It is technology‑neutral, formal and unambiguous so implementers can derive efficient physical designs in their chosen IT environment while allowing local extensions.

Key topics and technical requirements

• Information model scope: Specifies a core set of objects and structures considered fundamental and common across healthcare organisations, not a complete list of every possible data element.
• Technology neutrality: No assumptions on physical technologies, tools or platforms-model is implementation‑agnostic.
• Extensibility: Implementations may add attributes or new objects; extension methodology follows ISO 12967‑1:2020 (Clause 7).
• Formal specification: Uses UML class diagram notation and a defined profile to ensure clarity and non‑ambiguity for implementers.
• GenericHisaClass structure: Defines a common class organization (structure attributes, class‑specific attributes, common attributes, system and version attributes, extended attributes, state changes, business rules and classification criteria).
• Clusters of objects: Reference information models grouped by domain, including:
  • Classification objects
  • Subject‑of‑care objects
  • Activity management objects
  • Clinical and health information objects
  • Resource management objects
  • User and authorization objects
  • Messaging objects
• Operational vs descriptive data: Treatment of classifications, knowledge, instantiation and data types is specified to support both transactional and descriptive needs.

Applications and who uses it

EN ISO 12967-2:2020 is intended for:

• Healthcare system architects and enterprise architects designing service‑oriented health IT layers (HISA)
• EHR/EMR vendors and integrators implementing shared enterprise data stores
• Health IT project managers and CIOs planning system integration or consolidation
• Standards and interoperability teams aligning local data models with international profiles
• Software developers deriving physical data designs from a formal information viewpoint

Practical uses:

• Creating a common, interoperable information layer for multi‑system healthcare enterprises
• Guiding UML‑based information modelling and database/schema design
• Supporting consistent patient, clinical, resource and messaging data across systems
• Providing a framework for local extensions while maintaining core interoperability

Related standards

• ISO 12967‑1:2020 - methodology and architecture principles for HISA (used for extension rules)
• ISO 13940:2015 (Contsys) - aligned terminology and concepts
• Relevant domain standards such as HL7 profiles for messaging and clinical content

Keywords: EN ISO 12967-2:2020, HISA, Health informatics, service architecture, information model, ISO 12967, information viewpoint, interoperability.