Meta Data

Following on from Ray Ossies excellent cut and paste demo at Etech last week I have been thinking about the architectural implications of the demo and there appear to be two; the first is how to have and extensible script add in engine within the browser which is pretty easy actually and the other is the data format or schema. His demo showed using a Hcard Microformat but clearly we need many other microformats too which Ray actually pulled out in his call to action.

I am a great believer in standard metadata and schemas the snag I  have always had about them is that in practice they never seem to work very well. I was looking through Wikipedia today and found this great link which I think covers many of the issues with meta data.