Change propagation approach based on feature constraint in concurrent design

The traditional change propagation method oftens obtain searched results that may not satisfy with user's design intent.To solve the problem,this paper proposed a new method to improve the accuracy and effectiveness for change propagation analysis.First,it studied the expression of feature constraint oriented change propagation,and put forward the constraint structure model to describe product constraint topology.Then gave the change propagation of different types of constraint and the algorithm of changed feature constraint solving.Finally,proposed an example.The experiment shows that the method is more accuracy and effectiveness than others.