In One Identity Manager, a domain corresponds to the image of a specific area in Domino, such as an operational Domino system. Using this construction, which is far more stringently handled in One Identity Manager than in Domino, it is possible to manage several productive Domino environments in parallel using a One Identity Manager database. Even if a user's relation to their domain is not maintained in Domino, One Identity Manager is capable of assigning the domain to each user account and thus to separate environments.