For those complex and major decision-making problems in real life, DM process may go through multiple stages of interaction to gain more information of DM. By this means, veracity of decision results can be enhanced and risks of decision failure can be reduced. And then, the whole GDM process should be analyzed from the insight of decision process interaction to discuss how to measure the weight of attributes in multiple stages in complex and multi-stage and multi-attribute GDM problems, which are new fields of GDM research. At present, the research achievement on many problems about process-interacted GDM is lesser and , such as complexity of decision process, evolutionary process, interactive conflict, interactive collaborative and DM methods. Thus, the in-depth research on the methods of complex and dynamic GDM problems is very meaningful.
This dissertation mainly analyzes the constitutional complexity of process-interacted GDM, transition and evolution of GDM interaction process, and discusses several types of multi-stage and dynamic GDM mode. And then, some problems, existed in the