Subsumption and Equivalence of Expressions

(ELP0042_SubsumptionAndEquivalence-Expressions)

Description

This presentation explains one of the ways to compare post-coordinated expressions. The technique explained involves transforming expressions to a common normal form and then comparing the individual concepts and attributes in the normalized expressions.

Learning Objectives

After completing this presentation the student should be able to:

  • Discuss how different expressions can represent the same clinical meaning
  • Explain how the formal definition of SNOMED CT concepts supports the comparison of postcoordinated expressions
  • Summarize the process of generating the short and long normal forms of a SNOMED CT expression
Topics
  • Terminology Services
Audience
  • Data Analyst
  • Programmer
  • Researcher
  • System Designer
  • Terminologist DL
Presenter
David Markwell
Level
Advanced
Duration
32 minutes
Id
ELP0042
Last Updated
2021-09-20
Currently the presentation only available as part of one of the following courses.
Last modified: Thursday, 15 February 2024, 5:59 PM