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The CeRx 4.4 Release is a planned release to address enhancements and technical corrections identified by pan-Canadian Stakeholders, as well as to upgrade the standard to align with updated versions of terminology (e.g. SNOMED CT and LOINC). It was developed in tandem with Maintenance Release 02.05 (MR 02.05). This release was developed from a baseline of CeRx 4.3 Hotfix 3.
This release also marks an important milestone in the evolution of the development environment employed for creating our future maintenance releases. The new paradigm reflects a strong Model Interchange Format (MIF) focus where the MIF is viewed as a self-documenting source of all truth, all other artifacts (e.g. graphical rendering of the MIF, html relationship models, “doc” rendering for business views, etc.) being viewed as derivatives created by the appropriate rendering plugins. This paradigm, while not fully realized yet, promises a more complete, agile, integrated ecosystem allowing public access to the same tools that generated the release and are unambiguously maintained by the Standards Collaborative.
Following this transition point, the Standards Collaborative will progressively move away from using the V3 Generator suite of tools to using Remixer as a development platform.
For the purposes of business continuity and quality control, the current release has been developed using both avenues, the V3Generator suite of tools as well as the Remixer suite of tools. The go forward strategy for the maintenance activities
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associated with the pan-Canadian HL7 v3 space is the use of Remixer and a reduction of released artifacts to only those serving as the source of truth, all other artifact generation being relegated to plugins. A decision on this final list of deliverables has not yet been made and is expected to be developed in consultation with the public in early 2014, following the two pan-Canadian releases (CeRx 4.4 and MR 02.05).
Following the above reasoning, messaging RFCs contained in this release were developed using both HL7 V3 tools and Remixer and the resulting Model Interchange Format (MIF) files were compared to ensure that they were equivalent. The MIF v2 files from both tools have been published with this release, and the Remixer MIFs have been identified as beta. We strongly encourage stakeholders to use the Remixer MIFs and to identify any issues encountered while using these MIFs to the Standards Collaborative.
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