Product ITS Transport

Product Brief - HL7 V3: Transport Specifications

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Product Name

HL7 V3: Transport Specifications

Topics

• Transport Specification - ebXML, R1
• Transport Specification - MLLP, Release 2 ( Normative )

Standard Category

• Health Information Exchange Standards

Integration Paradigm

• Foundation

Type

Normative, ANSI Standard (MLLP) DSTU (ebXML)

Releases

ANSI/HL7 V3 TR ebXML, R1-2008; (DSTU) Transport Specification - MLLP, Release 2 ( Normative )

Summary

The HL7 Message Transport Specifications documents provide details as to the usage of a variety of communication transports for the exchange of HL7 based content, messages and documents. Currently specification documents for MLLP, SOAP-Web Services and ebXML are included in the package for separate review or separate balloting. Specification documents for other transports may be included as they are available.

Description

These Transport Specifications are not to be confused with the content of Transmission Infrastructure. Transmission infrastructure describes the information model, messages and interactions related to the assembly of an HL7 v3 composite message. The Transport Specifications address moving the message payload (the HL7 v3 composite message and/or HL7 v2 composite message) from sender to receiver. These transports are all capable of moving HL7 v3 composite messages and may also support moving HL7 v2 and CDA composite messages.

The purpose of the ebXML message wrapper is to provide a secure, flexible transport for exchanging HL7 messages and other content, and potentially other message formats, between message handling interfaces or ebXML Message Service Handlers (ebXML MSH). The ebXML Transport supports reliable messaging, encryption, authenticaltion and digital signatures, and exchange of messages over a variety of lower level transports such as HTTP, SMTP and TCP/IP.

The purpose of the MLLP Protocol (Minimum Lower Layer Protocol) is to provide both a minimalistic OSI-session layer framing protocol as well as a minimalistic reliable transport protocol. If security is an issue, additional protocols or technologies will have to be layered on top of MLLP to achieve these goals.

Work Groups

Implementable Technology Specifications

Education

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

Links to current projects in development

• Project Insight ID # 117, Transport Specification - ebXML R2
• Project Insight ID # 283, Transport Specification for ISO 9660-compliant Removable Media