Method and system for synchronizing software modules of a computer system distributed as a cluster of servers, application to data storage

A method for synchronizing software modules of an IT system distributed across plural servers interconnected as a network, each software module being executed on a server of the IT system for management of a set of data elements describing a service, in which at least a part of the descriptive data is replicated on multiple software modules, the method comprising:

• at each execution, on any one of the software modules, as a first software module, of an action acting on a descriptive data element managed by the first software module, performing the following:
• transmission by the first software module of a synchronization message identifying the action to all the other software modules of the IT system including a replication of this descriptive data element,
• on receipt of this message by any of the software modules concerned, as a second software module, execution of the identified action on this second software module so as to act on the replication of the descriptive data element located on this second software module.