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Data processing environment with methods providing contemporaneous synchronization of two or more clients

  • US 6,275,831 B1
  • Filed: 08/18/1998
  • Issued: 08/14/2001
  • Est. Priority Date: 12/16/1997
  • Status: Expired due to Term
First Claim
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1. In a data processing environment, a method for synchronizing multiple data sets, the method comprising:

  • establishing a data repository for facilitating synchronization of user information maintained among multiple data sets, said data repository storing user information from the data sets;

    storing at least one mapping which specifies how user information may be transformed for storage at a given data set;

    receiving a request for synchronizing at least one data set;

    based on user information stored at said at least one data set and based on said at least one mapping, propagating to the data repository from each of at said at least one data set any changes made to the user information, to the extent that such changes can be reconciled with user information already present at said data repository; and

    based on user information stored at said data repository and based on said at least one mapping, propagating to each of said at least one data set any changes to the user information which have been propagated to the data repository, to the extent that such changes are not present at said each data set;

    wherein a particular one of the data sets resides on a client device which is intermittently connected, and wherein said steps of propagating are deferred for the particular data set until the client device is actually connected.

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