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Towards a decentralized physical infrastructure for additive manufacturing in architecture: a proof of concept for a tamper proof, secure connection between designs, blockchains and 3D printers. (2024)
Presentation / Conference Contribution
DOUNAS, T., BERDOS, Y. and VELE, J. 2024. Towards a decentralized physical infrastructure for additive manufacturing in architecture: a proof of concept for a tamper proof, secure connection between designs, blockchains and 3D printers. In Kontovourkis, O., Phocas, M.C. and Wurzer, G. (eds.) Proceedings of the 42nd International conference on education and research in computer aided architectural design in Europe 2024 (eCAADe 2024): data-driven intelligence, 9-13 September 2024, Nicosia, Cyprus. Brussels: eCAADe [online], 2, pages 495-504. Available from: https://doi.org/10.52842/conf.ecaade.2024.2.495

We introduce a promising proof of concept: a blockchain to additive manufacturing pilot prototype. In this paper we focus on developing the functional cyberphysical prototype of the smart contracts running on a blockchain, orchestrating the workflow... Read More about Towards a decentralized physical infrastructure for additive manufacturing in architecture: a proof of concept for a tamper proof, secure connection between designs, blockchains and 3D printers..

Economy and community as bottom-up drivers for design: creating coordinating dashboards for architectural design. (2024)
Presentation / Conference Contribution
SMETS, M., VISSERS-SIMILON, E. and DOUNAS, T. 2024. Economy and community as bottom-up drivers for design: creating coordinating dashboards for architectural design. In Kontovourkis, O., Phocas, M.C. and Wurzer, G. (eds.) Proceedings of the 42nd International conference on education and research in computer aided architectural design in Europe 2024 (eCAADe 2024): data-driven intelligence, 9-13 September 2024, Nicosia, Cyprus. Brussels: eCAADe [online], 2, pages 505-514. Available from: https://doi.org/10.52842/conf.ecaade.2024.2.505

In our paper, we show that, from an economic and environmental point of view, neighbourhoods could benefit from a circular architectural design approach, as creating an actual circular economy and community asks for more organisation than purely spat... Read More about Economy and community as bottom-up drivers for design: creating coordinating dashboards for architectural design..

Classification of artificial intelligence techniques for early architectural design stages. (2024)
Journal Article
VISSERS-SIMILON, E., DOUNAS, T. and DE WALSCHE, J. 2024. Classification of artificial intelligence techniques for early architectural design stages. International journal of architectural computing [online], Online First. Available from: https://doi.org/10.1177/14780771241260857

This paper provides a strategic classification of artificial intelligence (AI) techniques based on a systematic literature review and four levels of potential: the levels of input, output, collaboration and creativity. The classification demonstrates... Read More about Classification of artificial intelligence techniques for early architectural design stages..

Digital creativity in urban interventions: using technology as an engagement and idea inducing tool. (2024)
Presentation / Conference Contribution
BELKOURI, D. and DOUNAS, T. 2024. Digital creativity in urban interventions: using technology as an engagement and idea inducing tool. In Di Marco, G., Lombardi, D. and Tedjosaputro, M. (eds.) Creativity in the age of digital reproduction: proceedings of the 1st xArch symposium (xArch 2023), 11-12 November 2023, Suzhou, China. Lecture notes in civil engineering, 343. Singapore: Springer [online], pages 103-110. Available from: https://doi.org/10.1007/978-981-97-0621-1_13

The urban planning discipline is increasingly turning to specialized technologies to better understand the multiple and complex processes within cities. Automation is already reshaping infrastructure and urban ecosystems. This study seeks to reconcil... Read More about Digital creativity in urban interventions: using technology as an engagement and idea inducing tool..

Spatial Interpretation in a text-to-image accelerated architectural design process: investigating diffusion models in sketch, preliminary and final design stages. (2024)
Presentation / Conference Contribution
VISSERS-SIMILON, E. and DOUNAS, T. 2024. Spatial interpretation in a text-to-image accelerated architectural design process. In Kontovourkis, O., Phocas, M.C. and WURZER, G. (eds.) Proceedings of the 42nd International conference on education and research in computer aided architectural design in Europe 2024 (eCAADe 2024): data-driven intelligence, 9-13 September 2024, Nicosia, Cyprus. Brussels: eCAADe [online], 2, pages 527-536. Available from: https://doi.org/10.52842/conf.ecaade.2024.2.527

The introduction of diffusion models – artificial intelligence models originally used as text-to-image generators – poses several questions for the architectural design process. Firstly, could diffusion models enhance those design processes? Secondly... Read More about Spatial Interpretation in a text-to-image accelerated architectural design process: investigating diffusion models in sketch, preliminary and final design stages..

Design dimensions for blockchain oracles in the AEC industry. (2023)
Presentation / Conference Contribution
DOUNAS, T., HUNHEVICZ, J. and BYERS, B.S. 2023. Design dimensions for blockchain oracles in the AEC industry. In Proceedings of the 2023 European Conference on Computing in Construction (EC3 2023) co-located with the 40th International CIB (International Council for Research and Innovation in Building and Construction) conference (CIB W78 2023), 10-12 July 2023, Heraklion, Greece. Kanata, ON: CIB [online], paper 297. Available from: https://doi.org/10.35490/EC3.2023.297

The literature on blockchain for AEC often has limited discussion on the design of the blockchain Oracle, the entity that ensures trusted information input from the real world. This work aims to illuminate an often unaddressed topic of how to best de... Read More about Design dimensions for blockchain oracles in the AEC industry..

What is the potential value of tokens and token engineering for the architecture, engineering, and construction industry? A positional paper. (2023)
Presentation / Conference Contribution
KIFOKERIS, D., DOUNAS, T., TEZEL, A. and MOON, S. 2023. What is the potential value of tokens and token engineering for the architecture, engineering, and construction industry? A positional paper. In Proceedings of the 2023 European Conference on Computing in Construction (EC3 2023) co-located with the 40th International CIB (International Council for Research and Innovation in Building and Construction) conference (CIB W78 2023), 10-12 July 2023, Heraklion, Greece. Kanata, ON: CIB [online], paper 304. Available from: https://doi.org/10.35490/EC3.2023.304

What is the value of tokens for blockchain applications in Architecture, Engineering, and Construction (AEC)? How can token engineering be contextualized in AEC? This positional paper instigates the tackling of these largely unexplored questions. Fol... Read More about What is the potential value of tokens and token engineering for the architecture, engineering, and construction industry? A positional paper..

Timber joints analysis and design using shape and graph grammar-based machine learning approach: synthetic data preparation of timber joints’ shape and graph grammar for machine learning application. (2023)
Presentation / Conference Contribution
YAU, H.M., DOUNAS, T., JABI, W. and LOMBARDI, D. 2023. Timber joints analysis and design using shape and graph grammar-based machine learning approach: synthetic data preparation of timber joints’ shape and graph grammar for machine learning application. In Dokonal, W., Hirschberg, U. and Wurzer, G. (eds.) Digital design reconsidered: proceedings of the 41st Education and research in computer aided architectural design in Europe (eCAADe) conference 2023 (eCAADe 2023), 20-23 September 2023, Graz, Austria. Berlin: eCAADe, volume 1, pages 569-578. Hosted on CumInCAD [online]. Available from: https://doi.org/10.52842/conf.ecaade.2023.1.569

Timber joints had been applied as one of the primary methods across different cultures of building construction. The technique of crafting timber joints uses simple geometry to connect different components without the need of adhesives or fixings. Di... Read More about Timber joints analysis and design using shape and graph grammar-based machine learning approach: synthetic data preparation of timber joints’ shape and graph grammar for machine learning application..

Decentralised additive manufacturing for architecture: exploring the integration of distributed ledger technologies with 3D printing. (2023)
Presentation / Conference Contribution
BERDOS, Y., VELE, J. and DOUNAS, T. 2023. Decentralised additive manufacturing for architecture: exploring the integration of distributed ledger technologies with 3D printing. In Dokonal, W., Hirschberg, U. and Wurzer, G. (eds.) Digital design reconsidered: proceedings of the 41st Education and research in computer aided architectural design in Europe (eCAADe) conference 2023 (eCAADe 2023), 20-23 September 2023, Graz, Austria. Berlin: eCAADe, volume 1, pages 709-718. Hosted on CumInCAD [online]. Available from: https://doi.org/10.52842/conf.ecaade.2023.1.709

This paper investigates the potential integration of blockchain and distributed ledger technologies with Additive Manufacturing in the context of architectural design and fabrication. The study aims to identify knowledge gaps, explore the affinity be... Read More about Decentralised additive manufacturing for architecture: exploring the integration of distributed ledger technologies with 3D printing..

Mass-customisation of dwellings in the Middle East: developing a design-to-fabrication framework to resolve the housing crisis in Saudi Arabia. (2023)
Presentation / Conference Contribution
ABDULMAJEED, A., AGKATHIDIS, A., LOMBARDI, D. and DOUNAS, T. 2023. Mass-customisation of dwellings in the Middle East: developing a design-to-fabrication framework to resolve the housing crisis in Saudi Arabia. In Dokonal, W., Hirschberg, U. and Wurzer, G. (eds.) Digital design reconsidered: proceedings of the 41st Education and research in computer aided architectural design in Europe (eCAADe) conference 2023 (eCAADe 2023), 20-23 September 2023, Graz, Austria. Berlin: eCAADe, volume 2, pages 157-164. Hosted on CumInCAD [online]. Available from: https://doi.org/10.52842/conf.ecaade.2023.2.157

The Saudi government is taking the initiative to modernise the country and address critical challenges. One of its primary goals is to relieve the housing deficit. One of the challenges in supplying the houses is that potential inhabitants have denie... Read More about Mass-customisation of dwellings in the Middle East: developing a design-to-fabrication framework to resolve the housing crisis in Saudi Arabia..

A crypto-twin framework for the AEC industry: enabling digital twins with blockchain technologies. (2023)
Presentation / Conference Contribution
DOUNAS, T., LOMBARDI, D., VELE, J. and PROKOP, S. 2023. A crypto-twin framework for the AEC industry: enabling digital twins with blockchain technologies. Architecture and planning journal [online], 28(3): proceedings of the 10th International conference of the Arab Society for Computation in Architecture, Art and Design 2022 (ASCAAD 2022): hybrid spaces of the metaverse: architecture in the age of the metaverse: opportunities and potentials, 12-14 October 2022, [virtual event], article 20. Available from: https://doi.org/10.54729/2789-8547.1215

The paper describes a conceptual framework and the smart contract architecture for Crypto-Twins (CT) in the AEC industry, i.e. blockchain (BC) enabled digital twins. We describe the background, terminology of technologies involved, while the methodol... Read More about A crypto-twin framework for the AEC industry: enabling digital twins with blockchain technologies..

Developing a design framework for the mass customisation of housing in Saudi Arabia: a critical review. (2023)
Presentation / Conference Contribution
ABDULMAJEED, A., AGKATHIDIS, A., DOUNAS, T. and LOMBARDI, D. 2023. Developing a design framework for the mass customisation of housing in Saudi Arabia: a critical review. Architecture and planning journal [online], 28(3): proceedings of the 10th International conference of the Arab Society for Computation in Architecture, Art and Design 2022 (ASCAAD 2022): hybrid spaces of the metaverse: architecture in the age of the metaverse: opportunities and potentials, 12-14 October 2022, [virtual event], article 32. Available from: https://doi.org/10.54729/2789-8547.1227

This paper explores the suitability of mass customisation (MC) technologies and techniques in order to provide affordable housing solutions for Saudi Arabia. In particular, the paper analyses ten articles filtered through 1.165 publications searched... Read More about Developing a design framework for the mass customisation of housing in Saudi Arabia: a critical review..

Qualitative knowledge graph for the evaluation of metaverse(s): is the metaverse hype or a promising new field for architects? (2023)
Presentation / Conference Contribution
AWAN, A., PROKOP, S., VELE, J., DOUNAS, T., LOMBARDI, D., AGKATHIDIS, A. and KURILLA, L. 2023. Qualitative knowledge graph for the evaluation of metaverse(s): is the metaverse hype or a promising new field for architects? Architecture and planning journal [online], 28(3): proceedings of the 10th International conference of the Arab Society for Computation in Architecture, Art and Design 2022 (ASCAAD 2022): hybrid spaces of the metaverse: architecture in the age of the metaverse: opportunities and potentials, 12-14 October 2022, [virtual event], article 23. Available from: https://doi.org/10.54729/2789-8547.1218

With the advancement of augmented and virtual reality technologies both in scale as well as accessibility, the Metaverse (Stephenson, 1992, Hughes, 2022) has emerged as a new digital space with potential for the application of architectural creativit... Read More about Qualitative knowledge graph for the evaluation of metaverse(s): is the metaverse hype or a promising new field for architects?.

Blockchain in construction law. (2023)
Presentation / Conference Contribution
ARNELL, P., CHRISTIE, D., MANTE, J. and DOUNAS, T. 2023. Blockchain in construction law. Presented at the March 2023 In conversation with Paul Arnell, David Christie, Joseph Mante and Theo Dounas, 1 March 2023 [virtual event]. Hosted on YouTube [online]. Available from https://www.youtube.com/watch?v=WxcySoZo2tI

In this webinar Paul Arnell, David Christie, Joseph Mante and Theo Dounas (all affiliated with Robert Gordon University) discuss construction law including Blockchain, Smart Contracts and payments.

The promise of blockchain for the construction industry: a governance lens. (2022)
Book Chapter
HUNHEVICZ, J., DOUNAS, T. and HALL, D.M. 2022. The promise of blockchain for the construction industry: a governance lens. In Dounas, T. and Lombardi, D. (eds.) Blockchain for construction. Singapore: Springer [online], pages 5-33. Available from https://doi.org/10.1007/978-981-19-3759-0_2

This chapter outlines the promise of blockchain for the construction industry. Blockchain is an opportunity to create novel forms of economic coordination toward better collaboration within and across the built asset life cycle phases. Ongoing resear... Read More about The promise of blockchain for the construction industry: a governance lens..

Collective digital factories for buildings: stigmergic collaboration through cryptoeconomics. (2022)
Book Chapter
DOUNAS, T., LOMBARDI, D. and JABI, W. 2022. Collective digital factories for buildings: stigmergic collaboration through cryptoeconomics. In Dounas, T. and Lombardi, D. (eds.) Blockchain for construction. Singapore: Springer [online], pages 207-228. Available from https://doi.org/10.1007/978-981-19-3759-0_11

The chapter describes conceptually how a blockchain (BC), through smart contracts (SC) and tokenisation, can act as a stigmergic information layer for the creation of collective digital factories in construction. The chapter focuses on the orchestrat... Read More about Collective digital factories for buildings: stigmergic collaboration through cryptoeconomics..

Decentralised autonomous organisations for the AEC and design industries. (2022)
Book Chapter
LOMBARDI, D. and DOUNAS, T. 2022. Decentralised autonomous organisations for the AEC and design industries. In Dounas, T. and Lombardi, D. (eds.) Blockchain for construction. Singapore: Springer [online], pages 35-45. Available from https://doi.org/10.1007/978-981-19-3759-0_3

The chapter presents the concept of Decentralised Autonomous Organisation (DAO) and discusses what the current and possible applications are in relation to the AEC, design and design-linked industries. The chapter first introduces theoretical aspects... Read More about Decentralised autonomous organisations for the AEC and design industries..

Smart contracts and payment in UK construction: the legal framework. (2022)
Book Chapter
CHRISTIE, D.S. and MANTE, J. 2022. Smart contracts and payment in UK construction: the legal framework. In Dounas, T. and Lombardi, D. (eds.) Blockchain for construction. Singapore: Springer [online], pages 167-184. Available from https://doi.org/10.1007/978-981-19-3759-0_9

This chapter critically evaluates the way in which the existing United Kingdom (UK) construction payment regime will function with – and assist – payment mechanisms which utilise smart contracts. Blockchain is one of several new developments in the i... Read More about Smart contracts and payment in UK construction: the legal framework..

Blockchain for construction. (2022)
Book
DOUNAS, T. and LOMBARDI, D. (eds.) 2022. Blockchain for construction. Singapore: Springer [online]. Available from https://doi.org/10.1007/978-981-19-3759-0

This book highlights the design, use and structure of blockchain systems and decentralized ledger technologies (B/DLT) for use in the construction industry. Construction remains a fragmented change-resistant industry with chronic problems of underpro... Read More about Blockchain for construction..

Blockchain technologies in construction. (2022)
Book Chapter
DOUNAS, T. and LOMBARDI, D. 2022. Blockchain technologies in construction. In Dounas, T. and Lombardi, D. (eds.) Blockchain for construction. Singapore: Springer [online], pages 1-4. Available from https://doi.org/10.1007/978-981-19-3759-0_1

The purpose of this volume is to inform the reader on the state of affairs of a new subset of construction informatics, Blockchain (B) and Decentralized Ledger Technologies (DLT)s. The initial motivation for writing and editing this volume was that w... Read More about Blockchain technologies in construction..