1. From RIMBAA to SIMBAA ? Robert Worden Open Mapping Software Ltd robert@OpenMapSW.com

2. RIMBAA to SIMBAA SIMBAA = Simple Model-based Application Architecture ‘Green CDA’ or ‘Green V3’ simplification produces a simplified class model – as well as reliable transforms to full V3 Specific to a set of use cases Much smaller than the RIM-based model; no clutter for other use cases, no V3 fixed stuff. Meaningful business names Why not use the simplified model for application development? Benefits: – Saves costs and timescales – Larger pool of developers – Understandable by clinicians – Easier testing – MDA with a neat model – Simple XML serialisation – Fully interoperable with RIM-based models Relationship to RFH ??

3. Simplifying V3 or CDA V3 RMIM (MIF) Templated RMIM (ECore) Annotated RMIM (Ecore) Simple Message Schema Skeleton Simple Message Simple-Full Transforms (XSLT) Simple-Full Mappings Simple Class Model (Ecore) Press the Button Select Rename MDHT model (Ecore)

4. Selecting and Renaming

5. The Simplified Class Model Classes labelled by. ( ) Business names chosen in previous step. Tree of containment associations.

6. Mapping to the Simplified Class Model The Green CDA class model is a good target for mapping any other XML to. Any => Any transforms can be generated from the mappings Full ToC CDA Simplified Green ToC CDA Clinical Informatio nModel EHR database CCR NCPDP Green ToC CDA Class Model

7. Model –Based Application Development Can develop applications entirely in terms of the model, and interface them to any XML or database which is mapped to the model Model-based query language – can query several mapped data sources side by side, and compare results Two possible styles of application development: – ‘Generic’ code: class names, attribute and association names as string arguments – EMF-generated Java classes: class names and method names as in the model Business names make the code simple and understandable

8. Potential Applications Transition of Care Reference Implementation (in S&I Framework) Model-driven user interface (e.g. CDA document builder) Green Lab, Green Pharmacy,....