Importance

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Abstract

An example of the invention includes a collaboration system having a shared file modification engine useful to notify collaboration users connected to a data network when a shared file is updated, the modification engine comprising a plurality of client computers that communicate a file modification status request including a file identifier and a file property, each of the plurality of client computers having a plurality of shared file applications running thereon. At least one server computer connected to the data network and to the plurality of client computers. At least one shared file useful with the plurality of shared file applications and containing data to be shared with the plurality of client computers, the at least one shared file modifiable by any of the plurality of users and having a file name and a current property associated with it. The server computer is configured to perform steps of receiving the file modification status requests from the plurality of client computers and use the file identifier in the status request to identify the at least one shared file; compare the current version property to the file property from the status request; and communicate a confirmation in response to the file modification status request when the current file property does not match the file property from the status request, the confirmation confirming that the shared file has been modified and including modifications made to the shared file. The file modification status request can be used with each of the plurality of shared file applications running on the client computers.

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First Claim