Dear all, I have been working hard to get an ontology of archetypes developed that will show the health domain mapped into the openEHR architecture. I have found a couple of things:
1. That there is often a link between an instruction and subsequent observations - which I think will be more important as knowledge bases are developed in the future. I have called the link an action specification and at present it is modelled as part of the instruction. Let me give a real example. If you prescribe a medicine then there are a number of attributes of that medication order - dose, form, route etc - and there is the frequency of administration. When you record that a medication has been administered - then you record the dose, form, route etc - but not the frequency. The link is the specification of the action - but not the conditional elements of the instruction. Many other things may be specified at the time that they are ordered and there may be protocols etc that are to be followed. For this reason - I have two new subclasses in the ontology (not in openEHR) - "openEHR Observation - action" and "openEHR action specification". This allows me to say which action specification applies to an instruction and which obeservations it applies to. 2. It might be necessary to state the sequence of different instructions. The French oncologists wish to state this for Surgery, Radiotherapy, Chemotherapy etc. Clearly each of these will have a complex action specification. How then to make it clear about the order of the instructions - should one finish before the other starts? I welcome your ideas. I have put the zipped (45K) protege files on www.gehr.org in the Watch this space section. Cheers, Sam ____________________________________________ Dr Sam Heard The Good Electronic Health Record Ocean Informatics, openEHR 105 Rapid Creek Rd Rapid Creek NT 0810 Ph: +61 417 838 808 sam.heard at bigpond.com www.gehr.org www.openEHR.org __________________________________________ - If you have any questions about using this list, please send a message to d.lloyd at openehr.org
