Warning: This documentation is out-dated, newest version of the documentation is available at https://gazelle.ihe.net/gazelle-documentation

Overview

Gazelle interoperability testbed offers a large set of validation services which enable the Healthcare IT developers and users to test the conformance to IHE specifications of the messages and documents produced by their systems. All those services are available all the year long through web services. In order to increase the ease-of-use of those services, IHE-Europe also offers, through the Gazelle portal, a web-based application named External Validation Service Front-End (aka EVSClient). The tool is accessible from the following URL.

It is the entry point for validating the following types of messages and documents:

• HL7 messages
• CDA documents
• SAML assertion
• Audit messages
• Certificates
• Dicom objects
• XDW documents
• PDF Validation
• XD* Metadata
• XDW document
• HPD messages

Concerning the messages, documents and assertions based on XML format, we use two mechanisms.  Validation can be based on schematrons or based on model.  An application namedSchematron-based Validatorhas been developed, it gathers all the schematrons used by the validation tool and provides a web service to validate documents. Both Schematron and Model Based Validation of XML documents also checks that the documents are well formed and valid according to the XSD.

The picture below illustrates how the EVS Client works.