The digital electronic guideline library (DeGeL): A hybrid framework for representation and use of clinical guidelines

Yuval Shahar, Ohad Young, Erez Shalom, Alon Mayaffit, Robert Moskovitch, Alon Hessing, Maya Galperin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


We propose to present a poster (and potentially also a demonstration of the implemented system) summarizing the current state of our work on a hybrid, multiple-format representation of clinical guidelines that facilitates conversion of guidelines from free text to a formal representation. We describe a distributed Web-based architecture (DeGeL) and a set of tools using the hybrid representation. The tools enable performing tasks such as guideline specification, semantic markup, search, retrieval, visualization, eligibility determination, run-time application and retrospective quality assessment. The representation includes four parallel formats: Free text (one or more original sources); semi-structured text (labeled by the target guideline-ontology semantic labels); semi-formal text (which includes some control specification); and a formal, machine-executable representation. The specification, indexing, search, retrieval, and browsing tools are essentially independent of the ontology chosen for guideline representation, but editing the semi-formal and formal formats requires ontology-specific tools, which we have developed in the case of the Asbru guideline-specification language. The four formats support increasingly sophisticated computational tasks. The hybrid guidelines are stored in a Web-based library. All tools, such as for runtime guideline application or retrospective quality assessment, are designed to operate on all representations. We demonstrate the hybrid framework by providing examples from the semantic markup and search tools.

Original languageEnglish
Title of host publicationComputer-Based Support for Clinical Guidelines and Protocols - Proceedings of the Symposium on Computerized Guidelines and Protocols, CGP 2004
PublisherIOS Press
Number of pages5
ISBN (Print)158603412X, 9781586034122
StatePublished - 1 Jan 2004
EventSymposium on Computerized Guidelines and Protocols, CGP 2004 - Prague, Czech Republic
Duration: 12 Apr 200414 Apr 2004

Publication series

NameStudies in Health Technology and Informatics
ISSN (Print)0926-9630
ISSN (Electronic)1879-8365


ConferenceSymposium on Computerized Guidelines and Protocols, CGP 2004
Country/TerritoryCzech Republic

ASJC Scopus subject areas

  • Biomedical Engineering
  • Health Informatics
  • Health Information Management


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