TMN and OSI management

Initially there was little collaboration between the management groups of CCITT and ISO/IEC. As a result, the 1988 version of Recommendation M.30 had no ISO/IEC counterpart and ISO/IEC standards had little impact on TMN. After publication of M.30, the collaboration between CCITT and ISO/IEC improved, which resulted in the incorporation of many OSI management ideas into TMN. Nowadays work on TMN and OSI management is being performed within the TeleManagement Forum (TMF), which is the successor of the Network Management Forum (NMF).

The most important changes to TMN were:

Despite this cooperation between the ITU-T and OSI management groups, fundamental differences in philosophy still exist.