Abstract: Ordered list management is described. An item's position within an ordered list is represented by a path value. A globally unique identifier (GUID) is appended to the path value to enable simultaneous or near-simultaneous modifications to the ordered list without conflict. Furthermore, an ordered list-specific seed value may be prepended to each item's path value to ensure clustering of ordered list items when two or more ordered lists are merged.

Abstract: Changes to references are propagated between entities in correlated namespaces. A first object in one external namespace refers to a second object in the one external namespace. The first object and the second object have associated central representations in a central namespace. A change to that reference is propagated to a third object in a third namespace by evaluating the associations between the central representations in the central namespace to determine if the third object is associated with one of the central representations, and if so, propagating the change to the reference. A user interface for configuring the flow of the propagations is also described.

Abstract: Described are mechanisms and techniques for enabling incremental non-chronological synchronization of namespaces. In an environment, entities must have unique names within a namespace and entities may only refer to entities that actually exist within the namespace. Synchronizing two such namespaces involves providing a mechanism for indicating that an entity has been created because a reference to that entity has been made even though that entity does not yet exist. At such time as the entity is formally created, the indication is removed. Synchronizing two such namespaces also involves providing a mechanism for indicating that an entity's unique name in the namespace has been compromised through the synchronization process.