Aristotle Metadata Registry
The Aristotle Metadata Registry ( or Aristotle-MDR ) is an open-source Metadata Registry framework based on the ISO/IEC 11179 standard for Metadata Registries . 
<triplet> Aristotle Metadata Registry <subj> Metadata Registry <obj> instance of <triplet> Metadata Registry <subj> ISO/IEC 11179 <obj> described by source