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One of the main obstacles to the wide adoption of openEHR in CDR implementation in hospital is that there is no practical persistence method described in the openEHR specifications. In this presentation, an archetype relational mapping (ARM) persistence method for CDR has been proposed, which was based on a set of rules designed for mapping the archetypes & templates to data tables of the relational database. The comparison between the generated ARM database, the conventional database of the hospital and the Node+Path database has been conducted, while the ARM database achieves better performance. The implemented CDR based on this method has been used in real clinical site for over two years. The current situation and the future plan of this effort will also be introduced.
2.3. EtherCIS: a pragmatic openEHR CDR(Christian
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Chevalley)
Many openEHR backend CDRs are based on various non mainstream technologies, from experimental to plain exotic. Although these works are important to lead the path to future production systems, with EtherCIS , we have resolutely decided to adhere to best- practice observed in current Data Center environments to ease its adoption. EtherCIS is an open source, multi-tiers application server based on a modern open source database engine: PostgreSQL. The presented approach may be of value for other openEHR implementations using, but not limited to, other well-known DB engines such as Oracle 12 or Intersystems Cache.
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