[Dev] Use of URLs in parcels
Brian Douglas Skinner
skinner at osafoundation.org
Fri Oct 24 18:50:11 PDT 2003
John Anderson wrote:
> Creating references with only drag and drop may not always work as you
> expect, since references are bi-directional and require the
> specification of a name, otherName, cardinality and otherCardinality.
> You could probably start by thinking about what would make good defaults.
John, I think those complexities are more of problem when you're working
without a shema (or with the AutoItem automaticly generated schema).
For the case that Jeffrey and Geoff are dealing with, the user would be
dragging an item onto a known attribute of another item. For example,
the user drags an icon representing item "Foo" onto a drop region
representing the "myFooList" attribute of item "Bar". In that case,
there's already schema in place with info about name, otherName,
cardinality, and otherCardinality.
More information about the Dev