Using metadata to improve spatial dataset quality during updates

Within this broad issue, we limit our scope to the updating of geographic data by different actors spread out over a communications network – with some data liable to change while the actor is disconnected from the network. Data is replicated on different sites and there is no server holding centralized information. Moreover, updating is conducted simultaneously by the different actors, sometimes in disconnected mode. The evolutions are therefore not necessarily relevant to a particular user, sometimes contain errors, can be conflicting and consistency issues can arise during their integration into different datasets.