Patent ID: 7627459
Filing Date: 2009-12-01
Classification: G06F

Abstract:
1. A method for modeling a system for simulation of time accumulation effects, the method implemented by a computer, the method comprising: producing, by the computer, a graphical representation of at least one state of the system with at least one directed graph, the at least one directed graph comprising: an aging token, a first place and a second place capable of hosting the aging token, a transition for moving the aging token from the first place to the second place, and at least one directed arc for connecting either of the first place and the second place to the transition; assigning, by the computer, at least one value to the aging token to represent aging, the at least one value capable of being updated with a counter based on at least one aging policy of the aging token while the aging token resides in either of the first or second place; delaying the movement of the aging token from the first place to the second place; and updating, by the computer, the at least one value of the aging token with the counter if the transition has an aging policy matching the at least one aging policy of the aging token.