حسين كريميان

Iran’s construction industry faces profound challenges such as payment delays, lack of transparency in transactions, an‎d supply chain inefficiencies that reduce project productivity an‎d exacerbate financial an‎d legal risks. This thesis, titled “Feasibility Study of Using Blockchain-Based Smart Contracts to Improve the Construction Industry Supply Chain Payment Process,” examines the transformative potential of this technology in fundamentally redesigning payment processes. Fundamentally redesigning processes means radically changing the structure an‎d implementation of traditional processes with the aim of significantly improving transparency, traceability, an‎d efficiency. Using a mixed approach (qualitative an‎d quantitative), the present study analyzed the views of 12 industry experts in the qualitative part through semi-structured interviews an‎d Likert an‎d thematic analysis, an‎d in the quantitative part, the data of 24 other experts using Excel an‎d Super Decision software with the Analytic Hierarchy Process (AHP) method. It is worth noting that only 6 experts shared the same opinion between both sectors. The findings show that transparency (weight 0.5006) is the most important criterion, an‎d the immutable record of transactions strengthens trust an‎d oversight. Cost reduction (weight 0.295) an‎d automated execution of payments (weight 0.196) are highlighted as benefits, minimizing operational costs an‎d delays. However, lack of infrastructure (weight 0.2273) an‎d initial costs (weight 0.2033) are the main challenges, while trust building (weight 0.232) an‎d fraud reduction (weight 0.2051) are considered key opportunities. This study proposes Hyperledger Fabric as the optimal blockchain platform for Iran due to its modular architecture, flexible consensus, an‎d high scalability, which circumvents restrictions caused by sanctions by using local servers an‎d LTE networks. Integration with Building Information Modeling (BIM), Internet of Things (IoT), an‎d multi-layer smart contracts enhances coordination an‎d transparency.

قرارداد هوشمند , بلاكچين , زنجيره تامين , سوپردسيژن , شفافيت , مديريت اطلاعات ساختمان BIM , هايپر لجر فابريك , اينترنت اشياء

Smart Contract , Blockchain , Supply Chain , Super Decision , Transparency , BIM , Hyperledger Fabric , IOT

Hossein Karimiyan

Dr. Mostafa Khanzadi