Abstract: In order to efficiently cope with a series of defects of the consistency check method of group decision, the complexity of consistency judgement of group decision preference is analyzed and hypothetic scenarios of the group decision preferential information representation are described according to the characteristics of diversified decision-making orientation, different plan attributes and complex preferential structures exhibited by group decision-making scenarios. Based on that, an axiomatic description is conducted of conventional multi-attribute group decision issues. In view of the overall decision-making information judgment strategies from the perspective of plans and attributes, the overall judgment and consistency test methods of preference, recognition methods of group decision preference types, solutions to judge the deviation within and between preferences, overall relative consistence test methods of preference and multi-round inconsistence decision information adjustment strategies are provided. Results of the case study suggest that all the above methods and strategies are valid and feasible, and can provide references for the consistence test, adjustment and integration of the composite structure preference under the scenarios of diversified decision orientation and significant alternative differences.

Key words: multi-attribute group decision, composite structure preference, preferential recognition, preferential integration