This Recommendation | International Standard (1993) specifies methods to observe and report on attribute values for performance related purposes. Attributes may be of the same or different types. Results of observations may be provided through notifications as they are collected or "buffered" and provided en bloc.

This Technical Corrigendum 2 revises the text to include ASN.1:1997 in 2.1, 2.2 and 13.1.1.