US Patent 7689999 Sharing dynamically changing resources in software systems

A system and method for sharing a set of resources among a plurality of processes, comprising creating a version of a resource for each one of the plurality of processes that requires access to the resource wherein a version of the resource is one of: 1) a representation of the resource at a particular point in time; and 2) a transformation of the resource; making each of the created versions available to the plurality of processes; and notifying a process in the plurality of processes when a resource in the set of resources upon which the process requires access is updated.