This Recommendation | International Standard: a) defines general mechanisms for the use of names and addresses to identify and locate objects in the OSIE; and b) defines the use of these mechanisms within the layered structure of the Basic Reference Model. This Recommendation | International Standard extends the concepts and principles defined in ITU-T Rec. X.200 | ISO/IEC 7498-1. This Recommendation | International Standard is not intended to be either an implementation specification or a basis for appraising the conformance of actual implementations. The specific form of names and addresses is not within the scope of this Recommendation | International Standard.