Customer Attributes(CAs Easy to open and close door Easy to close from outside -Stays open on a hill Easy to open from inside a Doesn't leak in rain No (or little)road noise Shanghai Jiao Tong University 11Shanghai Jiao Tong University 11 Customer Attributes(CAs) n Easy to open and close door n Easy to close from outside n Stays open on a hill n Easy to open from inside n …… n Isolation n Doesn’t leak in rain n No (or little) road noise n ……