关键词: SP95标准, 业务到制造标记性语言, 可扩展标记语言, 离散业, 工厂模型, 建模

Abstract: To complement the insufficiency of real time and integration in digital plant model, the 95th Standard Project (SP95) standard was adopted for plant modeling. Based on definition and description of plant model of SP95 standard, an extended model was proposed with reference to discrete manufacturing enterprises in China. The model extended two elements：rack and variable, and their implementation and functions were introduced. Using extension functions of the SP95 standard, Business To Manufacturing Markup Language (B2MML) Schema was extended to provide unified data sharing format. Based on the new improved model, a case of plant model was constructed to prove the validity of this theory.

Key words: 95th standard project standard, business to manufacturing markup language, extensible markup language, discrete manufacturing enterprises, plant model, modeling