Opereffa stands for openEHR REFerence Framework and Application. It is a project for creating an open source clinical application which will be driven by the Clinical Review Board of openEHR. The clinical application will be built on top of a Java based open source framework, which is using the existing open source Java reference implementation of openEHR.
This web site contains information about the project, source code and binaries, and finally a demonstration of the current state of Opereffa.
Opereffa aims to bring together the openEHR clinical and technical communities on a common discussion platform, where the CRB's requirements can be used to develop an openEHR based software development framework.