>Of cause it is possible to hide everything behind a persistence layer >_interface_ and doesn?t talk anything about what we have behind the >interface. But the subject and quite many of the mails had talked about the >persistence layer (and not the interface), then it is necessarily to know >what kind of application it should support. > > It was me bringing up the subject a few times, and it was because that was a part which was not worked out in the openeher specs, and because I am quite new here, I thought I had missed something. It was difficult to make myself clear, and therefore difficult to get a clear answer, that is why some mails about this were sent.
I thought there had to be a clear point where one could point, like Lego-blocks (www.lego.com), you take a persistence layer block, and put it below the reference kernel, put the archetype kernel-block on top and an GUI block on top of that, and you have build an information system. I could'n't find a clear spot where to put the persistence layer block, nor could I find a description of the interface that openehr was prepared for, and I heard in Holland people shout, just put a database below and run it, and I thought, am I a fool? But now it is clear to me. Those shouting people did not have much knowledge on the subject. There are no persistence layer defined in the OpenEhr specs, Thomas said there will be specs for this after some time. Agree? Bert
