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The SNOMED CT Diagramming Guideline document describes a diagrammatic notation for representing the definition of a concept, an expression, or relation between expressions within SNOMED CT. The aim of this guideline is to:
- Provide a consistent, diagramming style in documentation
- Reduce ambiguity and misunderstandings caused by multiple different representations
- Improve the quality of diagrams through a consistent approach, prompting consideration of all relevant aspects
- Increase efficiency, allowing the SNOMED CT community to rapidly exchange ideas
- Reduce effort by providing templates supporting commonly used tools
This guideline is for use in all SNOMED International documentation and is strongly recommended for all other documentation representing SNOMED CT concepts and models.
Web browsable version: http://snomed.org/diagram
SNOMED CT Document Library: http://snomed.org/doc
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Contents
1 Introduction
2 Rationale
3 Diagram Types
4 Diagram Elements
- 4.1 Concepts
- 4.2 Concrete Values
- 4.3 Attributes
- 4.4 Attribute groups
- 4.5 Conjunction
- 4.6 Relational Operators
- 4.7 Arrow
- 4.8 Line
- 4.9 Names and element sizes
- 4.10 Colour
- 4.11 Gradients, blends and opacity
- 4.12 Fonts
5 Layout
6 Examples
Appendix
- Appendix A - Template Expressions
- Appendix B - Additional Context
- Appendix C - Interactive Browsing Diagrams
- Appendix D - Technical Implementation Guide Examples
- Appendix E - Diagramming Guideline Templates
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