A DECENTRALIZED BIM DOCUMENT MANAGEMENT SYSTEM WITH BLOCKCHAIN AND IPFS INTEGRATION FOR CONSTRUCTION PROJECT DELIVERY

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2022-9-01

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Koç, Furkan

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Construction project delivery has been evolving with digitalization of the industry. On the way of the digitalization, Building Information Modelling (BIM) is one of the leading developments such that most project deliverables are accomplished collaboratively among project participants through information models to successfully design and manage construction. The management of project deliverables in collaboration necessitates a common data environment in which each participant can access the permissioned project deliverables at any time, which means a network built on the web. In this manner, construction projects have begun to be managed in cloud-based document management systems (DMS). DMS helps the completion of a project systematically by providing an environment for storage, retrieval and management of the project documents. Despite its irreplaceable return, DMS constitutes remarkable issues related with security, serviceability and cost. Blockchain technology with its features of decentralization, transparency, immutability and security is well-matched with the issues of DMS. Thus, this study aims to develop a decentralized document management system (DDMS) with the integration of Ethereum blockchain which is a public blockchain and Interplanetary File System (IPFS) for construction project delivery by deploying a smart contract. A decentralized application is designed for the proposed system to allow the participants to use it with ease while blockchain ensures immutability of document exchanges and IPFS stores the document on the distributed network securely. The contributions and limitations of the DDMS are demonstrated and discussed through a Metro Line project.

Subject Keywords

Blockchain, Decentralized Storage, Information Security, Document Management, Building Information Modelling

URI

https://hdl.handle.net/11511/99593

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

F. Koç, “A DECENTRALIZED BIM DOCUMENT MANAGEMENT SYSTEM WITH BLOCKCHAIN AND IPFS INTEGRATION FOR CONSTRUCTION PROJECT DELIVERY,” M.S. - Master of Science, Middle East Technical University, 2022.