Patent 9098500 was granted and assigned to Xilinx on August, 2015 by the United States Patent and Trademark Office.
In one embodiment of the present invention, a method is provided for maintaining and storing revision history of a design. The method includes, in response to a first control input by a user, determining, by a processor, module definition parameters that have changed from a design file. The changed module definition parameters are stored in the design file. For each changed module definition parameter, revision data are appended to revision history data. The revision data indicates a revision identifier, a module definition parameter identifier, and an updated value of the changed module definition parameter.