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Searching SNOMED CT
October 26, 2012 10:45
Brandon Ulrich – B2i Healthcare Reymond Wilaisono – Ministry of Health Holdings, Singapore
Main challenge: Simplicity versus expressivity
• Simplicity and usability – Keep primary search interface as simple as possible – Use the same interface everywhere – Concept model to reduce potenOal matches – Search profiles and usage frequencies to rank results
• Advanced searches – Find concepts based on SNOMED CT’s semanOcs – Reuse searches for refsets, terminology binding, etc.
October 26, 2012
Demo
• Quick search – Generally-‐accepted search principles – More controversial choices
• SemanOc search – ESCG (Extended SNOMED ComposiOonal Grammar) / HL7 TermInfo
queries
October 26, 2012
Demo screenshots
The following slides contain sample screenshots from the live demonstraOon.
October 26, 2012
Generally-‐agreed SNOMED CT search principles • Progressive matching • Highlight matching terms • Prefix matching • Implicit AND • Strip accents and punctuaOon • Visually idenOfy top-‐level concept • Previous choices (history) • Bookmarks (favorites) • Concept model to constrain results • Search profile (context)
October 26, 2012
SemanOc queries
ESCG: Extended SNOMED ComposiOonal Grammar • ~HL7 TermInfo with support for reference sets • AddiOonal UNION and some Boolean operators
October 26, 2012
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