RESTful Service Description Language (RSDL)
Jonathan Robie, Rob Cavicchio, Rémon Sinnema, Erik Wilde · Balisage series on markup technologies · 2013
RESTful Service Description Language (RSDL) is an XML vocabulary for designing and documenting hypermedia-driven RESTful Services. RSDL takes a purist hypermedia-driven approach to REST design, requiring that a service have a single entry point, and focusing the design on resources, links, and media types.