dialogue or drama?

[Brad Scott <brad.scott@brambletye-publishing.co.uk>]

Hi everyone

In the Publishers schema, a <dialogue> is "A container for speeches and 
other forms of communication involving dialogue."

And a <drama> is "A container for plays and other forms of dramatic 
presentation."

In practice, we are seeing lots of potential ambiguity about where to 
use each one, not least since they have the same content model. For 
example, a very short quoted extract from a play can easily look like an 
exchange between two people and hence our supplier has used <dialogue>, 
though since it is from a play, technically it probably should be in 
<drama>.

Similarly, I've also seen interview transcripts placed in <drama>, 
though <dialogue> would probably be more appropriate. Some have even 
occured within <qandaset>...

Does anyone have any experience of offering more firm guidance on usage 
of these elements, please?

Thanks

Brad