Unit 1 Introduction to Industrial EngineeringThe Roles of IEIndustrial engineering(IE)isemerging as one of the classic*and novel professions that will be counted for solving complex and systematic problems in the highly technological world of today1.In particular，with the rapid development of Chinas economy and its acting as a center of world manufacturing industries，the demand for IE will increase and widen continuously and urgently. 工业工程是新兴的经典和新颖的将计算解决复杂和系统性的问题，在今天的高度科技世界职业之一。 ，特别
