EXPRESS语言在企业建模中的应用

企业模型传统的框图表示法不能被计算机识别，从而影响企业模型之间的信息集成，针对这一问题，提出了一种用产品模型数据交换标准中的EXPRESS语言表达企业模型的方法。说明了企业建模中应用EXPRESS语言的可行性及优越性，阐述了用EXPRESS语言中的实体嵌套定义描述企业模型的具体方法，并给出了一个用EXPRESS语言描述汽车制造行业企业参考模型的实例。这样建立的企业模型中的模型信息可以直接通过计算机调用，实现了企业模型之间以及模型与企业各个生产环节之间信息的有效集成。

Application of EXPRESS language in enterprise modeling

Computer cannot identify enterprise model expressed by graphics so that the information-integrations among models are affected. Thus the method using EXPRESS language of STandards for the Exchange of Product (STEP) Model Data was proposed to express enterprise model. The feasibility and advantages of applying EXPRESS language in enterprise modeling were described. The methods using ENTITY nesting to express enterprise model were expatiated on, and an instance using EXPRESS language to describe reference-model of automobile-industry was given. Hence information in enterprise model expressed by that can directly be transferred through computer, the integration among models can effectively be realized, and the information integration between enterprise model and production-process can be easily treated.