随着国内外市场竞争的日益激烈，企业的生存和发展面临着各种挑战。及时地掌握准确而有效的信息，成为企业经营者共同关注的核心问题。另外，信息技术在企业的管理和生产工艺流程、效率的提高以及节能等诸多方面均发挥着重大作用。信息技术（IT）本身也有重大的进展。IT过去主 With the increasingly fierce market competition at home and abroad, the survival and development of enterprises are facing various challenges. Timely grasp of accurate and effective information, business managers have become the core issue of common concern. In addition, information technology plays a major role in many aspects of enterprise management and production process flow, efficiency improvement and energy saving. Information technology (IT) itself has made significant progress. IT past the Lord