Abstract: A method for comparing a first data set with a second data set, where each comprises one or more corresponding segments. The method comprises determining the difference between corresponding pairs of end points of corresponding segments, and deeming the first data set to match the second data set if the difference is less than a predetermined tolerance for all of the corresponding pairs of end points, and deeming the first data set not to match the second data set if the difference is greater than the predetermined tolerance for any one of the corresponding pairs of end points.

Abstract: An embodiment of a method of facilitating a file transfer includes an initial step of receiving a first request for a first electronic file. The embodiment of the method also includes a step of determining whether the first electronic file contains a reference to a second electronic file. In addition to the two previous steps the embodiment of the method includes a step of obtaining a filename associated with the second electronic file. Furthermore, the embodiment of the method includes a step of sending the filename to a system that issued the first request.