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CHECKING FRESHNESS OF DATA FOR A DATA INTEGRATION SYSTEM, DIS

  • US 20160012097A1
  • Filed: 06/30/2015
  • Published: 01/14/2016
  • Est. Priority Date: 07/14/2014
  • Status: Abandoned Application
First Claim
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1. A method of checking freshness of data for a data integration system (DIS), storing data integrated from external sources in a data store following a data query to the DIS, the method comprising:

  • carrying out a freshness check out on queried data integrated from external sources, the freshness check accessing stored metadata in the DIS and comparing the stored metadata for queried data with current metadata of the external sources for the queried data; and

    allowing by the DIS, if the stored metadata matches the current metadata, the query to use the data in a data store and if the stored metadata does not match the current metadata, the data in the data store is refreshed from the external sources before use in the query.

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