Some principles of sociotechnical system are opposite to the traditional organization theories . further it reveals the differences between the sociotechnical system and bpr . the former focuses on both technical subsystem and social subsystem while the latter focuses only on the technical one 它倡导的降低工作专门化程度和自我管理原则是对传统组织理论的重大挑战,同时它还克服了业务流程再造只针对生产系统进行优化的局限性,同时注重对技术子系统和社会子系统的共同优化。