Rational unified process ( rup ) is a spired and object - oriented method . use case is its drivers and the system structure is its center . it gives us a way how tasks and responsibilities are assigned exactly . so quality product can be getted . in this paper , basing on a small enterprise , we discuss the applying of the method based on uml in the development of erp . and in the whole process the kernel of rup is also embodied Rational统一过程( rationalunifiedprocess ， rup )是一种以usecase为驱动、以体系结构为中心的螺旋上升式面向对象开发过程，它提供了如何在开发组织中严格分配任务和职责的方法，能够使软件开发按预先制定的时间、计划和经费预算，开发出满足用户需求的高质量产品。
