Resources Contact Us Home
Policy algebra and compatibility model

Image Number 7 for United States Patent #7584499.

The present invention provide for an algebraic mapping of a policy expression from a compact to a normalized form, both in Boolean and set formulations. The policy algebra is defined in such a way that policy alternatives within the normalized expression will be the same across equivalent compact expressions--regardless of how the assertions are arbitrarily constrained or what operators are used to constrain such equivalent expressions. Moreover, the present invention also provides a model for identifying alternatives that are equivalent by comparing only the root element names or QName of each assertion within an alternative. In addition, embodiments as described herein can utilize the identification of equivalent alternatives in order to create an intersection policy expression to limit alternatives of admissible behavior to those in common across both endpoints.

  Recently Added Patents
Virtual image display device and manufacturing method of virtual image display device
Methods for the production of aligned carbon nanotubes and nanostructured material containing the same
Vehicle tail lamp
Method and system for detecting target objects
Image forming apparatus acquiring image processing time detected when the acquired time is longer that the previously set time and to correct output image density using generated patch pattern
Wireless communication method, wireless communication system, and mode switching method
System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS
  Randomly Featured Patents
Fluorescent ballast with inherent end-of-life protection
Selecting one of multiple antennas to receive signals in a wireless packet network
Taxol derivatives with antitumor activity
Angular speed measuring device
Suspension polymerization process of acrylic monomers
Tool for removing and applying a fastening device
Beverage container
Balancing structure for a single curved tube coriolis flow meter
Patient handling system whereby a patient table top can move over a table base
Gas concentration meter and insulating glass assembly and method thereof