Classification of Quality Attributes for Developing Construction Traceability Systems in Taiwan

Construction quality directly affects building durability and resident safety, yet construction traceability systems remain underdeveloped compared to established agricultural models. This study employed the Kano two-dimensional quality model to assess differences among consumers, construction companies, and government officials in Taiwan regarding the prioritization of traceability system attributes. Using ANOVA, chi-square tests, independent t-tests, and satisfaction indices, significant group differences were identified in perceived attribute importance, service quality expectations, and awareness levels. Consumers exhibited higher awareness and demonstrated willingness to pay premiums for properties offering traceability. Key findings highlight third-party certification and material sourcing transparency as critical attributes. These insights provide strategic guidance for Taiwanese policymakers and industry stakeholders aiming to enhance construction transparency and consumer confidence.