Hi, I've written up some thoughts on considering datasets as "layers" that can be combined to create useful aggregations. The concept originated with Dan Brickley and I see the RDF WG are considering the term as an alternative to "named graph". My own usage is more general. I thought I'd share a link here to see what people thought.
The paper is at: http://ldodds.com/papers/layered-data.html And a blog post with some commentary here: http://www.ldodds.com/blog/2012/05/layered-data-a-paper-some-commentary/ Cheers, L.
