An interoperability layer enables disparate health information systems to more easily communicate between each other in order to exchange information.

Call topics and agenda are managed at: https://trello.com/b/prE5M3fh 

Process Overview

As a part for the RHEA project an HIE has been developed for maternal health in Rwanda. For more information about this implementation see: here. During this implementation the OpenHIM (http://openhim.org/) was developed. This is expected to work for the pilot implementation for the RHEA project that is planned to run in a single district of Rwanda, however, it is not know if this instance will scale to a national level and if the technology is appropriate for national scale.

As a part of the OpenHIE project this community is tasked with reviewing and evaluating what makes a good interoperability layer going into the future and seeks to determine what technologies would be suit an interoperability layer for our purposes.

Methodology

• What is an interoperability layer

• Document use cases

• Document requirements

• Review current OpenHIM architecture 

• Review current OpenHIM technologies 

• Performance test current OpenHIM 

• Generate estimated load figure for national deployment

• Create performance testing framework

• Gather data from tests

• Compile performance data into a report

• Investigate and evaluate alternate orchestration/mediation engines or options 

• Enumerate and explore alternatives

• Detail each alternative, it's implications and pros/cons

• Develop evaluation tool from requirements

• Evaluate each tools against the evaluation tool

• Compile results 

• Investigate use of standards in OpenHIM and each option 

• Write up results of evaluation 

• Detail each option, with input from the evaluation results

• Detail the suggested way forward

Interoperability Layer use cases and requirements

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