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Implementation and use of PII data access control facility employing personally identifying information labels and purpose serving function sets

  • US 7,617,393 B2
  • Filed: 06/18/2007
  • Issued: 11/10/2009
  • Est. Priority Date: 08/19/2003
  • Status: Expired due to Term
First Claim
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1. A method of implementing a data access control facility, said method comprising:

  • assigning personally identifying information (PII) classification labels to PII data objects, wherein a PII data object has one PII classification label assigned thereto;

    defining at least one PII purpose serving function set (PSFS) comprising a list of application functions that read or write PII data objects; and

    assigning a PII classification label to each PSFS, wherein a PII data object is only read accessible via an application function of a PII PSFS having a PII classification label that is equal to or a proper subset of the PII classification label of the PII data object.

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