National Health Information Model Version 2

Publication
Release Date: 13 Jun 2003
Author: AIHW

PDF Report (1.3Mb)

This paper is a contribution to the ongoing work in health information modelling and is subject to revision based on future developments in the field of health informatics. The State and Territory health departments are continually enhancing their own enterprise information models and work is currently occurring nationally in Electronic Health Records and HL7 messaging. This and other work in progress will inform the development of future versions of this document.

ISBN: 978 1 74024 187 8
Cat. no: HWI 45
Pages: 67

Preliminary material
- Title and verso pages
- Contents
- List of figures
- Acknowledgments
- Executive summary

The concept of a national health information model
- The objectives of NHIM Version 1
- The concept behind NHIM Version 1
  - Underlying information structures
  - An enterprise information model
  - Why an 'information' model?
  - Entity-relationship modelling
- An evaluation of Version 1
  - The outcomes
The development of Version 2
- Introduction
  - Supporting material
  - Status of this publication of Version 2
  - Changes from Version 1
  - Use of established techniques and methods
  - Issues with the entity-relationship approach
  - Current and emerging modelling and data definition techniques and formats
- Use of information modelling in the Australian health and welfare sectors
  - NHIM and NCSIM
  - Experience in the development and use of other models
- Decisions on relationships at a national level
  - Describing relationships
  - Revised aims for the project
Evaluation of NHIM Version 2
- Introduction
- Use as a national framework
  - The NHIM and the National Health Data Dictionary
  - The NHIM and the Knowledgebase
  - Potential for broader use as a framework
- Technical features of the NHIM
  - Appropriateness of entities
  - Appropriateness of relationships
  - Definitional integrity of NHIM entities
- International information modelling initiatives
  - Canadian Roadmap Initiative
  - ISO developments
  - US NCVHS
- Aims for Version 3
- Potential roles for the NHIM
  - Health Online and HealthConnect
  - National Electronic Health Records Task Force
  - Framework for performance and other indicators
  - Good Electronic Health Record
  - HL7 Reference Information Model
  - State health data models
  - Other jurisdictional data models
  - Summary
- Promoting the role of the NHIM
  - Future management of the NHIM
- Summary
- Copyright and disclaimer
Version 2 explained
- Presentation conventions for Version 2
  - Entities
  - Entity supertypes and subtypes
  - Attributes
  - Dotted boxes - further work required
- An overview of Version 2 of the NHIM
  - The macro-architecture
  - The NHIM in action
- Summary
Bibliography

Appendix 1: NHIM entity definitions (165KB PDF)
- The NHIM diagram
  - Entity definitions, usage and rules
  - The use of DATE and TIME in the NHIM
- Entities, definitions and business rules

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