An　association　between　the　components　structure　is　studied　in　the　product　design　in　this　paper,　and　some　ideas　of　improving　the　development　of　new　product　and　the　decision-making　efficiency　of　its　selection　scheme　has　been　proposed　according　to　the　ideas　of　the　process　modeling　and　global　design.　Then,　the　hierarchical　principle　of　feedback　mechanisms　is　introduced　to　construct　a　new　process　modeling　method,　and　the　descriptive　power　of　object-oriented　process　model　and　the　design　flexibility　of　new　product　are　improved.　The　method　has　been　applied　to　construct　rapidly　the　automobile　coating　production　line　successfully.　©　2011　Trans　Tech　Publications,　Switzerland.