Abstract: Fault-tolerant DC-AC electric power conversion device, comprising a switch-mode DC-DC converter (1, 2), a switch-mode DC-AC converter (3) comprising at least one leg (4A, 4B, 4C), a redundant leg (5), a first fault-recovery circuit (6) with at least one reconfiguration switch (TA, TB, TC) to modifying the state of said first fault-recovery circuit (6) so that the redundant leg (5) replaces one leg (4A, 4B, 4C) of the DC-AC converter (3), and a second fault-recovery circuit (7) with at least one reconfiguration switch (T1, T2) to modifying the state of said second fault-recovery circuit (7) so that a compatible operational switch (SRL) of the redundant leg (5), which is compatible to replace one operational switch (S1, S2) of the DC-DC converter (1, 2), replaces said operational switch (S1, S2) of the DC-DC converter (1, 2).

Abstract: The present invention offers a solution for service provisioning that is generic and fits any domain, whether telecom, internet, or any service-related domain. This solution can be used in any scenario wherein a management entity is provisioning a given service in a managed entity, allowing potential users of a service to be subscribed to, to provide user preferences or settings for, and to be withdrawn from said service. Such solution is achieved within the present invention thanks to a management system and method supporting a Subscription Management Generic Interface (SuM-GI) that is intended for enabling the exchange of information related to provisioning activities between a Provisioning Node and a number of Provisioned Nodes. This Subscription Management Generic Interface (SuM-GI) comprising a SuM-GI Data model and SuM-GI Operations, the latter intended to act on object classes in said SuM-GI Data Model.