PROVIDING UNIQUE VIEWS OF DATA BASED ON CHANGES OR RULES

In one embodiment, a method comprises creating and storing, in a revisioning database, one or more data objects; wherein a first plurality of the data objects is associated with a base realm representing data shared across all users of the database; wherein a second plurality of the data objects is associated with one or more child realms, wherein each of the child realms represents data local to a project, wherein each of the users is associated with one or more of the child realms; wherein the revisioning database associates each data object to a realm identifier value and to a version identifier value for a plurality of versions of the data object, wherein each of the versions represents a change to the data object by any of a plurality of users; receiving a request from a first user to view a third plurality of data objects in the revisioning database; selecting, based on the base realm, the particular realm, the version identifier value for the data objects in the third plurality, and one or more rules associated with the particular realm and the first user, data objects in the third plurality that can be viewed by the first user; creating a particular data view that includes only the selected data objects; and providing a display of the particular data view to the first user.