Abstract: Software Product Line domain feature model and application feature models need to keep consistency during evolution,however they usually evolve separately．Building synchronization facility for each kind of feature model is time-consuming and error-prone．So we proposed a generic framework for synchronizing domain feature model and application feature models during evolution,including a generic feature meta-model and the synchronization rules based on the meta-model．Using the framework,different software organizations just need to define the transformation between their specific feature model and the generic feature model．In addition,we used an example to verify the usability of the framework.

Key words: Software product line,Feature model evolution,Synchronization