上游充通大￥ SHANGHAI JIAO TONG UNIVERSITY 2.2 Why models? ④Ve use models To abstract away from details in the reality,so we can draw complicated conclusions in the reality with simple steps in the model To get insights into the past or presence To make predictions about the future Software EngineeringSoftware Engineering 2.2 Why models? We use models • To abstract away from details in the reality, so we can draw complicated conclusions in the reality with simple steps in the model • To get insights into the past or presence • To make predictions about the future