Product GELLO

Product Brief - GELLO

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Product Name

HL7 Version 3 Standard: Gello: A Common Expression Language, Release 1

Standard Category

Health Information Knowledge Representation Standards

Type

Normative, ANSI Standard

Releases

• ANSI/HL7 V3 GELLO, R1-2005

Summary

HL7 Version 3 Standard: GELLO, A Common Expression Language is intended to be a standard query and expression language for decision support.

Description

HL7 Version 3 Standard: GELLO, A Common Expression Language is intended to be a standard query and expression language for decision support. GELLO is a class-based, object-oriented (OO) language that is built on existing standards. GELLO includes both query and expression sublanguages, which we refer to collectively as the GELLO language (for succinctness we will also refer to the two sublanguages simply as languages). GELLO is based on the Object Constraint Language (OCL), developed by the Object Management Group. Relevant components of OCL have been selected and integrated into the GELLO query and expression languages to provide a suitable framework for manipulation of clinical data for decision support in health care. The GELLO language can be used to:

• Build up queries to extract and manipulate data from medical records.
• Construct decision criteria by building up expressions to reason about particular data features/values. These criteria can be used in decision-support knowledge bases such as those designed to provide alerts and reminders, guidelines, or other decision rules.
• Create expressions, formulae, and queries for other applications.

Work Groups

• Clinical Decision Support WG

Education

• See more at http://www.hl7.org/implement/training.cfm

Certification Available

• none