Re: "PICS 1.x Changes to support digital libraries (& signatures)"

On Wednesday, 31 August 2011, Simon Spero <ses@unc.edu> wrote:
> Notice how PICS was sexpr based, and had provenance and higher arity
predicates.

Back to the future :)

Also ahead of it's time, RDF's other ancestor MCF:
http://www.guha.com/mcf/mcf_spec.html
http://www.guha.com/mcf/wp.html

'Compositable Descriptions: We often need to have multiple layers of
descriptions, each adding to or modifying lower layers.'

'Since the layers themselves are units, the relation between the layers
themselves is expressed as assertions. These assertions are in the
BaseLayer, a special layer that is at the bottom of the total order.'

Dan

Received on Wednesday, 31 August 2011 20:18:02 UTC