A decision framework for Chinese-style cruise ship design based on informativeness weight method and group consensus reaching model

In recent years, the European cruise ship design style has failed to meet the cultural needs of Chinese users, leading to a growing demand for cruise ships incorporating Chinese elements. The richness and uniqueness of Chinese culture make most existing cruise ship design decision-making methods inapplicable for Chinesestyle cruise ship design. This article introduces a decision-making framework for Chinese-style cruise ships to address this gap based on the informativeness weight method and the group consensus achievement model. This framework determines decision criteria based on the characteristics of Chinese-style cruise ships and Cultural Hierarchy Theory (CHT), and it employs trapezoidal fuzzy set theory to manage the fuzziness of the decision-making environment, resulting in decision matrices. Furthermore, a bilateral negotiation model for group consensus achievement is introduced to reach group consensus among decision-makers (DMs), adjust the decision matrix, and calculate the weight of each expert. The informativeness weight method is used to determine the weight of each criterion, and the TOPSIS method is applied to establish option scores and rankings. By analyzing three Chinese-style cruise ship design options, the paper validates the effectiveness of this decision-making method. A comparative analysis of the informativeness weight method and the bilateral negotiation consensus achievement model further demonstrates the superiority of this decision-making framework.