Date Added: Aug 2009
While introducing briefly the development process of Management Information System (MIS), the paper depicts three kinds of development methods which in common use, such as the Structured Development, Prototyping Development and Object-Oriented Development. On the base of this, it puts forward the problem of oneness about them by comparing three development methods through two approaches. At first, it discusses their oneness by comparing the development process of three kinds of development methods. Secondly, it depicts their oneness by comparing the development width and deepness and brings forth the development process model, perfect degree function H (t) of the three kinds of development methods.