Philippe I would suggest that the duration of the event is not included - rather modelled in instructions themselves as there are many different ideas of event duration. The time to give a dose of intravenous agent may be very specific and I believe needs to be modelled explicitly - not as part of a time specification. That is, it is necessary to say that the dose must be given over at least 20 minutes. Rather than the medication is given for 20 min twice a day.
The other point is that the model you have come up with is part of workflow - but theirs are more complex as events are related and timing of relations is also important. Cheers, Sam > Hi Gerard, > > We have found that we could represent anything cyclic with two concepts > : regular cycle and unregular cycle > > For regular cycle, you have just to specify the cycle length (say P) and > the event duration (say D) ; time between events is P-D. > Natural langage expression is of the kind "ten minutes every two hours" > > For unregular cycle, you need to specify a third parameter : the number > of events inside a cycle (say N). > Natural langage expression could be : "one hour three times a day" > > That way, you just need 5 semantic concepts to express any cyclic > pattern of an event : > regular cycle > unregular cycle > cycle length > event duration > number of events inside a cycle > > Of course, you can add some concepts such as starting time, ending time > and overall duration. > > Well, it seems very simple ; however, we started a project with a lot of > pre-elaborated sentences samples provided by MDs, and we discovered that > natural langage is very un-accurate because the same sentence can be > understood very differently if you think of it as a regular cycle or an > unregular one. > So we fumbled nearly one month before I was able to discover that the > underlying model was so simple. > > Cheers, > > Philippe > > Gerard Freriks wrote: > >> Dear Philippe, >> >> Thank you for your reaction. >> >> I'm interested in your model for cyclic events. >> >> Gerard >> >> >> -- <private> -- >> Gerard Freriks, arts >> Huigsloterdijk 378 >> 2158 LR Buitenkaag >> The Netherlands >> >> +31 252 544896 >> +31 654 792800 >> On 27 Jan 2005, at 20:15, Philippe AMELINE wrote: >> >>> Hi, >>> >>> In Odyssee, we have made the choice of : >>> >>> 1) defining the concept "Age" as an ellapsed time value >>> 2) defining age related concepts (like "child", "old person"...) as >>> fuzzy sets >>> >>> I think that it is the only way you can manage this kind of thinks. >>> >>> We also have a (quite) good model for cyclic events ; I can describe it >>> further if you want. >>> >>> Cheers, >> >> > > - > If you have any questions about using this list, > please send a message to d.lloyd at openehr.org > - If you have any questions about using this list, please send a message to d.lloyd at openehr.org
