Model organization and description are a basic problem in decision supporting systems. At the same time, they are also the preconditions in model management. After studying the integrated modeling and design and development of CS-DSSP（Client/Server based decision supporting systems platform）, an integrative framework for model organization, called IFMO is introduced, which includes component model description, model component framework, architecture of integrative framework etc. IFMO provides a method that implements a new modeling technique in DSS.