Description Set Profile
The 2008 draft "Description Set Profiles: a constraint language for Dublin Core™ application profiles" (DC-DSP) provided a language for specifying constraints on the structural components of a Description Set as defined by the DCMI Abstract Model. DC-DSP expressed sets of constraints as "templates" against which RDF graph-based instance metadata (records) could be matched (validated) - an idea achievable today using the newer technologies, inspired in part by DC-DSP, Shape Expressions Language (ShEx) and Shapes Constraint Language (SHACL).