This Recommendation is one of a series of Recommendations of the Telecommunications Management Network (TMN),providing specifications of TMN management functions and TMN management function sets.The content is developed in support of Task Information Base B (Roles,resources and functions),associated with Task 2 (Describe TMN management context) in the TMN interface specification methodology specified in ITU-T M.3020.When performing the analysis of TMN management context,it is desirable to consider maximal use of the TMN management function sets available in this Recommendation.