RFC 6570 - URI Template
http://tools.ietf.org/html/rfc6570
URI and IRI Templates, Oy | 2006-12-22 | BitWorking
http://bitworking.org/news/URI_and_IRI_Templates__Oy
"When I first started looking at URI templates I was surprised no one had written a specifiction for them yet. It seemed so simple, "just" add {name} to the URI and then substitute with a value at a later time."
URI Templates
http://www.ietf.org/internet-drafts/draft-gregorio-uritemplate-00.txt
"URI Templates are strings that can be transformed into URIs after embedded variables are substituted. This document defines the structure and syntax of URI Templates."