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First published June 4, 2003 as JAMIA PrePrint; doi:10.1197/jamia.M1264
Journal of the American Medical Informatics Association 2003;10(5):433-443
© 2003 American Medical Informatics Association

A more recent version of this article appeared on September 1, 2003
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Submitted on October 4, 2002
Accepted on May 13, 2003

The Syntax and Semantics of the Proforma guideline modelling language

David R. Sutton1* and John Fox2

Affiliation of the authors: 1 Oxford Brookes University, Oxford, England, UK; 2 Advanced Computation Laboratory, Cancer Research UK

* To whom correspondence should be addressed.

PROforma is an executable process modelling language that has been successfully used to build and deploy a range of decision support systems, guidelines and other clinical applications. It is one of a number of recent proposals for representing clinical protocols and guidelines in a machine-executable format (see www.openclinical.org). In this paper we outline the task model for the language and provide an operational semantics for process enactment, together with a semantics for expressions which may be used to query the state of a task during enactment. The operational semantics includes a number of public operations that may be performed on an application by an external agent, including operations that change the values of data items, recommend or make decisions, manage tasks that have been performed, and perform any task state changes that are implied by the current state of the application. Disclosure: PROforma has been used as the basis of a commercial decision support and guideline technology Arezzo® (details in text).




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