Phillippe We are working hard on INSTRUCTION at the moment and have a document coming out soon.
The model is basically to have an instruction and a new class of ENTRY which records execution or actions. Thus the execution of an instruction can be tracked and any variation recorded (to the detail users require) while being sure of the original instruction. To do this effectively we need to work in the Workflow space - and there are many developing standards in this area. We have had a look at the HL7 GTS which pushes a lot of information into a single slot - and it is not as far as we can see conformant with current workflow standards. We have been looking closely at iCal for timing - it probably does a lot of what we need. I would be interested to hear what you are up to... Cheers, Sam - If you have any questions about using this list, please send a message to d.lloyd at openehr.org