A system (OMS) for supporting an intervention to be carried out by a human operator on a network apparatus (NA1, ... NAn) of a communication network (CN), said system (OMS) comprising a terminal device (TD1, ... TDk) provided in the equipment of said human operator, said terminal device (TD1, ... TDk) being provided with a personal proxy (PP1, ... PPk), wherein said personal proxy (PP1, ... PPk) is configured to: - process a live view of said network apparatus (NA1, .. NAn) for extrapolating first information on said network apparatus (NA1, ... NAn); - retrieve second information on said network apparatus (NA1, ... NAn) from a network inventory (NI) of a network management system (NMS) of said communication network (CN); - compare said first information with said second information; - when a mismatch is detected between said first information and said second information, carry out a synchronization procedure of said network inventory (NI); - by means of said terminal device (TD1, ... TDk), provide to said human operator at least one instruction to carry out at least one operation of said intervention, by displaying at least one augmented reality element (NP) overwritten to a live view of at least a portion of said network apparatus (NA1, ... NAn); - cooperate with said network management system (NMS) of said communication network (CN) for checking whether said at least one instruction was properly executed; and - by means of said terminal device (TD1, ... TDk), report an outcome of said checking to said operator by displaying at least one further augmented reality element (NP') overwritten to said live view of at least a portion of said network apparatus (NA1, ... NAn), wherein said terminal device (TD1, ... TDk) is provided with a camera suitable for framing said live view and a display suitable for showing both said framed live view and one or more augmented reality elements overwritten to said live view. - process a live view of said network apparatus (NA1, .. NAn) for extrapolating first information on said network apparatus (NA1, ... NAn); - retrieve second information on said network apparatus (NA1, ... NAn) from a network inventory (NI) of a network management system (NMS) of said communication network (CN); - compare said first information with said second information; - when a mismatch is detected between said first information and said second information, carry out a synchronization procedure of said network inventory (NI); - by means of said terminal device (TD1, ... TDk), provide to said human operator at least one instruction to carry out at least one operation of said intervention, by displaying at least one augmented reality element (NP) overwritten to a live view of at least a portion of said network apparatus (NA1, ... NAn); - cooperate with said network management system (NMS) of said communication network (CN) for checking whether said at least one instruction was properly executed; and - by means of said terminal device (TD1, ... TDk), report an outcome of said checking to said operator by displaying at least one further augmented reality element (NP') overwritten to said live view of at least a portion of said network apparatus (NA1, ... NAn), <EOS>