Overall equipment effectiveness is taught as an industrial convention: three factors, availability times performance times quality, adopted because decades of practice found them useful. This paper proves that it is not a convention. Over the minimal variable set of discrete manufacturing, and with piece count admitted as a base dimension alongside time, the Buckingham π theorem forces exactly three independent dimensionless groups, and those three groups are exactly the availability, performance, and quality factors. The two formulas every OEE practitioner learns, the factored form A × P × Q and the collapsed form τG/T_p, are revealed as the factored and telescoped presentations of one and the same π monomial. Nakajima wrote down the correct answer in 1988. The theorem that makes it inevitable is proved here. The move that makes this work is dimensional rather than statistical. Counts of a specified entity are treated as quantities of a kind rather than as bare numbers, exactly as the International System treats amount of substance for the mole. With the unit dimension U in the basis, ideal cycle time carries T U⁻¹, throughput carries U T⁻¹, and count ratios become true π groups instead of informal percentages. Without U the count variables are dimensionally invisible, the matrix loses a row, and the machinery of the theorem cannot see the structure it is about to reveal. Nothing metaphysical is claimed for U; the instrumental reading, that U is the bookkeeping dimension of a specified countable product, carries every result in the paper. Two completeness theorems. Theorem 1 establishes that over the base dimensions T and U the minimal set {T_p, T_r, τ, N, G} admits exactly three independent groups and that the OEE triple is a complete basis, so every dimensionless quantity constructible from those five variables is a product of powers of availability, performance, and quality. Theorem 2 establishes a completeness result of exactly parallel shape for the statistical layer: over the single dimension of a quality characteristic, the set {Δ, σ, δ} admits exactly two groups, and the capability pair C_p = Δ/(6σ) and the centering index k = 2δ/Δ is a complete basis. The demonstrated capability index C_pk = C_p × (1 − k), the sigma level Z = 3C_pk, rolled throughput yield, and a closed form for normalized Taguchi loss all follow as members of that basis. The extension ladder. Each variable appended to the minimal set introduces no new base dimension until energy enters, so each purchases exactly one further independent group, and at every rung the new group already has a name on the factory floor. Total calendar time gives TEEP. Takt time gives takt coverage. Mean time between failures and mean time to repair give the reliability burden and with it the classical inherent availability as an exact identity, together with a ledger that resolves the opaque quantity 1 − Π_A, the availability loss that OEE reports but cannot explain, into named and separately actionable channels. Changeover time gives the SMED setup burden. Energy gives an efficiency group that only the rank form of the theorem can find, since a naive count of base dimensions predicts three groups and would wrongly conclude that no independent energy group exists. The flow variables give the Factory Physics WIP efficiency together with a closed identity for process cycle efficiency, PCE = Π_F × u, which tells a diagnosing engineer whether poor flow is an inventory problem or a starvation problem. The bridge law. The two layers join at exactly one point. For a process in statistical control with normally distributed output, the capability pair determines a ceiling on the quality group, Π_Q* = Φ(3C_p(1 − k)) + Φ(3C_p(1 + k)) − 1. Determination runs one way: capability sets a ceiling that operations can fail to reach but cannot exceed, and the gap between the ceiling and the observed quality group is itself diagnostic, because an in-control capable process that nonetheless scraps parts is losing them to special causes and startup transients rather than to inherent spread. Consequences for the canon. The Six Big Losses of total productive maintenance and the eight wastes of Lean close one to one against the group registry, each located in the group whose degradation it names. Lean and Six Sigma are re-read as dimensional analysis performed on two different variable sets, the flow variables and the spread variables, by communities that did not know they were doing it, which is offered as an explanation of why their merger into a single methodology worked in practice. The normalized Taguchi loss acquires the closed form ΛQ = (9C_p²)⁻¹ + k², which separates the spread term from the centering term additively and repairs a known defect of Taguchi practice, whose signal-to-noise ratios take logarithms of dimensional quantities. The composite and what it changes. A plant-level composite, Ψ_Plant = Ψ_OEE × Γ_Demand × Γ_Energy × Γ_Flow, becomes an additive loss ledger under logarithms. Because the composite is a product, its log-elasticity with respect to every factor is exactly unity, so no factor carries more marginal leverage than another and improvement priority is set entirely by headroom, which is precisely what the ledger measures. A worked injection-molding line scored over one operating week returns Ψ_OEE = 0.680, a respectable value squarely inside the typical industrial band, while the composite returns Ψ_Plant = 0.0638. The ledger says why: flow contributes seventy-six percent of the log deficit. A single-lever intervention table follows. Buying uptime, the move a manager reading only the OEE number would make, returns 1.12 fold. Cutting work in process to its critical level multiplies the composite eightfold, from 0.064 to 0.510, without touching availability, performance, or quality at all. The intervention that feels natural is not the intervention that pays, and the framework tells them apart before a dollar is spent. Scope and limitations, stated plainly. The bridge law assumes statistical control and normality; for non-normal characteristics the ceiling must be computed from the fitted distribution. Reliability enters through a renewal approximation. The minimal set is single-product, and clamping conventions are declared wherever imposed, with the raw unclamped groups always reported alongside. The worked example is synthetic. Its inputs are constructed to be consistent with published benchmark values rather than drawn from a single instrumented plant, so it demonstrates the machinery and its diagnostic reading but is not an empirical validation; full single-plant instantiation with direct measurement is the subject of the next paper in this program. The paper positions itself explicitly against five bordering literatures, the OEE literature, process-physics dimensional analysis, the dimensional analysis tradition inside operations management, data envelopment analysis and index numbers, and Factory Physics, and states its priority claim as scoped to that survey, with correction from the community invited.
Froylan Cortés-Santacruz, Luis Antonio Carrillo-Martínez, Luciano García‐Bañuelos, Jesús Anselmo Fortoul-Diaz
Although distributed ledger technologies (DLTs) have transformed financial sectors, their manufacturing applications lack systematic maturity assessment frameworks. Previous reviews identified DLT benefits but show critical gaps, including a lack of quantitative maturity metrics, insufficient categorization of use cases, and limited platform-specific comparative analysis. This systematic literature review addresses these gaps through three key contributions: (i) a novel Distributed Ledger Technology Maturity Level (DLTML) framework, (ii) a four-category manufacturing taxonomy, and (iii) platform-specific implementation analysis. Analyzing 60 primary studies (2018–2025) using Kitchenham’s guidelines, Wohlin’s snowballing, and Treiblmaier’s assessment framework, we answer the following: (i) What are the categories of use of DLT in manufacturing? (ii) What features of DLT are key enablers and what specific challenges have been addressed in current manufacturing solutions? (iii) What is the level of technological maturity of DLT applications in manufacturing according to the existing literature? The category Process Execution Tracking dominates (80 % of the studies), followed by Provenance (65 %), Ownership Management (30 %) and Payment Management (25 %). Smart contracts are the main enablers (81. 67 %), followed by decentralization (48.33 %). Governance mechanisms remain unaddressed, and interoperability progress is limited. Hyperledger Fabric leads privacy-sensitive scenarios (55 %), while Ethereum dominates transparency-focused applications (38 %). DLTML assessment shows that 61.66 % achieve intermediate maturity (DLTML-3), 20 % achieve high-fidelity prototypes (DLTML-4), but none achieves verified operational deployment (DLTML-5). This study provides evidence-based guidance for researchers and decision makers pursuing the adoption of DLT in manufacturing.
This presentation will demonstrate using WebAssembly for audio plugins outside the web browser. Specifically, the showcase is a WebAssembly binary used as a synthesizer plugin in a commercial, desktop based Digital Audio Workstation software such as Garage Band or Logic. In addition there will be a proposal and demonstration of a commercial model for distributing and controlling access and ownership to these WebAssembly audio plugins, by storing them on the NEAR blockchain and binding them to Non-Fungible-Tokens ( NFTs ).
Centralized exchanges (CEXs) currently dominate the cryptocurrency trading landscape due to their speed, liquidity, and ease of use. However, they also introduce several critical risks, including custodianship of user assets, vulnerability to censorship, and reliance on centralized infrastructure that represents a single point of failure. In contrast, the advent of Automated Market Makers (AMMs), such as Uniswap, brought a paradigm shift in decentralized finance (DeFi) by enabling peer-to-peer trading through liquidity pools without intermediaries. While revolutionary, AMMs face inherent limitations such as slippage, impermanent loss for liquidity providers, and suboptimal price discovery compared to traditional orderbook systems. This research proposes a decentralized on-chain orderbook model designed to bridge the gap between centralized exchanges and AMM-based decentralized exchanges. The system replicates the precision, transparency, and efficiency of traditional orderbookdriven markets while adhering to DeFi principles of trustlessness and non-custodial asset management. Developed using Solidity smart contracts and deployed on Ethereum-compatible test networks such as Monad the platform enables users to place, cancel, and execute both limit and market orders directly on-chain. To address blockchain performance bottlenecks, the architecture incorporates an off-chain order matcher that listens to smart contract events, identifies compatible buy and sell orders, and batches potential matches for improved gas efficiency. Importantly, final trade execution and settlement remain fully decentralized, being handled exclusively by smart contracts. This hybrid design achieves low-latency order matching without compromising decentralization or asset security
The sustainable and efficient management of the built environment is a crucial challenge in the increasingly digitalized AEC sector. Innovative technologies such as Building Information Modeling (BIM) and Digital Twin (DT) offer significant opportunities to enhance the operational efficiency and sustainability of physical assets. However, digitalization generates vast amounts of Big Data, and their handling through centralized architectures leads to risks of fragmentation, lack of transparency, and vulnerability to manipulation. In response to these challenges, this study presents an innovative Proof of Concept (PoC) that integrates Blockchain (BT), Digital Twin (DT), and Non-Fungible Token (NFT) technologies to promote decentralized and sustainable data management in the construction industry. The application, called dDT (decentralized Digital Twin), was initially deployed on the Solana blockchain and later integrated with Polygon to leverage EVM compatibility and the ERC-721 standard for NFTs. The platform enables the tokenization of data flows generated by physical assets, ensuring traceability, security, and transparency throughout the entire asset lifecycle. The dDT system represents a sustainable innovation as it creates a secondary data market, fostering collaboration among industry stakeholders and financing new developments through the sale of data-linked NFTs. This decentralized solution addresses fragmentation and transparency issues, promoting more secure, resilient, and sustainable data management practices. The PoC demonstrates how the integration of BT, DT, and NFT can accelerate the transition toward more efficient and innovative practices, with positive impacts on sustainability and technological advancement in the AEC sector.
The evolving manufacturing landscape, characterized by increasing demands for customization, flexibility, and efficiency, requires adaptive systems that can respond in an autonomous and dynamic way. Bio-inspired Adaptive Manufacturing Systems, or Bio-AMS, provide a novel answer by integrating principles from nature that include self-organization, resilience, and adaptability. This paper covers the development and application of Bio-AMS, in which biological inspiration from organisms and ecosystems was applied to create systems that would adapt to varying production demands, disturbances, and resource constraints. In this manner, Bio-AMS enhances both the efficiency and scalability of systems with decentralized control, adaptive feedback, and MAS architectures. Simulations show that Bio-AMS outperforms conventional systems in terms of minimizing downtime and maximizing productivity. Case studies demonstrate their capability for autonomous adaptation to disruption and therefore operational resilience. Future work focuses on refining the algorithms, integrating advanced technologies like AI and IoT, and taking the applications to various industries.
The evolution of blockchain technology, from its origins as a decentralized ledger for cryptocurrencies to its broader applications in areas like decentralized finance (DeFi), has significantly transformed financial ecosystems while introducing new challenges such as Maximum Extractable Value (MEV). This paper explores MEV on the Polygon blockchain, with a particular focus on Atomic Arbitrage (AA) transactions. We establish criteria for identifying AA transactions and analyze key factors such as searcher behavior, bidding dynamics, and token usage. Utilizing a dataset spanning 22 months and covering 23 million blocks, we examine MEV dynamics with a focus on Spam-based and Auction-based backrunning strategies. Our findings reveal that while Spam-based transactions are more prevalent, Auction-based transactions demonstrate greater profitability. Through detailed examples and analysis, we investigate the interactions between network architecture, transaction sequencing, and MEV extraction, offering comprehensive insights into the evolution and challenges of MEV in decentralized ecosystems. These results emphasize the need for robust transaction ordering mechanisms and highlight the implications of emerging MEV strategies for blockchain networks.
Krzysztof Gogol, Szczepan Gurgul, Faizan Nehal Siddiqui, David Branes · 5 authors
Ethereum's scalability limitations pose significant challenges for the adoption of decentralized applications (dApps). Zero-Knowledge Rollups (ZK Rollups) present a promising solution, bundling transactions off-chain and submitting validity proofs on-chain to enhance throughput and efficiency. In this work, we examine the technical underpinnings of ZK Rollups and stress test their performance in real-world applications in decentralized finance (DeFi). We set up a proof-of-concept (PoC) consisting of ZK rollup and decentralized exchange, and implement load balancer generating token swaps. Our results show that the rollup can process up to 71 swap transactions per second, compared to 12 general transaction by Ethereum. We further analyze transaction finality trade-offs with related security concerns, and discuss the future directions for integrating ZK Rollups into Ethereum's broader ecosystem.
M. Ferreira, Bernardo J. R. Figueiredo, Alexandre Soares dos Santos, João Filipe Matos · 5 authors
Digital twins (DTs) are transforming industries by offering real-time virtual representations of physical assets, enabling smarter decision-making and optimization. However, as these systems become more complex and distributed, maintaining reliable traceability remains a significant challenge. To address this, we propose a multi-context, modular platform that leverages blockchain and distributed ledger technologies (DLTs) to enhance the traceability of digital twins. Our proposal will ensure secure, immutable, and transparent records of data interactions, fostering greater trust, accountability, and interoperability across various domains. The foundation of this work involved identifying the key Architecturally Significant Requirements (ASRs) that must be considered in the platform's design. Based on the first ASRs related to traceability and data flexibility, we developed a conceptual architecture supported by an ontology that addresses the multi-context traceability challenge. The proposed approach was validated through two distinct case studies: livestock management and shop-floor processes. Moving forward, our focus will be on addressing the remaining ASRs that were already identified, to further develop a high-performance, secure, and scalable modular platform capable of supporting diverse contexts and applications.
Francisco J. Quesada, Francisco Moya, Mercedes Rodríguez-García, Bapi Dutta
Tendering processes aim to provide transparency in the trade of services or goods but often fall short, leading to corruption and loss of trust. The emergence of Distributed Ledger Technologies (DLTs), such as blockchain, has prompted research into their application for enhancing transparency in tendering. However, adopting DLT usually incurs extra costs, network fees, and high carbon footprints. This paper conducts a Multi-Criteria Decision Making (MCDM) process to select the most suitable DLT for tendering processes. As a result, a novel tendering process based on IOTA is proposed, which improves transparency, ensures ecological sustainability, and avoids extra costs. The IOTA-based approach also fosters collaboration between human and computer capabilities in selecting the tender winner. Our method is compared with existing approaches, demonstrating the highest transparency.
Hotaru Beam is a logic puzzle which objective is to connect circles placed on a grid by drawing only lines with specified starting points and numbers of bends. A zero-knowledge proof is a communication protocol that allows one player to persuade the other that they are in possession of a certain piece of information without actually revealing it. We show that Hotaru Beam is NP-complete and present a physical zero-knowledge proof (i.e. implementable using physical items) for proving that one knows a solution to the puzzle.
The paper presents a novel framework for implementing decentralized algorithms based on non-fungible tokens (NFTs) for digital twin management in aviation, with a focus on component lifecycle tracking. The proposed approach uses NFTs to create unique, immutable digital representations of physical aviation components capturing real-time records of a component’s entire lifecycle, from manufacture to retirement. This paper outlines detailed workflows for key processes, including part tracking, maintenance records, certification and compliance, supply chain management, flight logs, ownership and leasing, technical documentation, and quality assurance. This paper introduces a class of algorithms designed to manage the complex relationships between physical components, their digital twins, and associated NFTs. A unified model is presented to demonstrate how NFTs are created and updated across various stages of a component’s lifecycle, ensuring data integrity, regulatory compliance, and operational efficiency. This paper also discusses the architecture of the proposed system, exploring the relationships between data sources, digital twins, blockchain, NFTs, and other critical components. It further examines the main challenges of the NFT-based approach and outlines future research directions.
Zeiger is a pencil puzzle consisting of a rectangular grid, with each cell having an arrow pointing in horizontal or vertical direction. Some cells also contain a positive integer. The objective of this puzzle is to fill a positive integer into every unnumbered cell such that the integer in each cell is equal to the number of different integers in all cells along the direction an arrow in that cell points to. In this paper, we prove that deciding solvability of a given Zeiger puzzle is NP-complete via a reduction from the not-all-equal positive 3SAT (NAE3SAT+) problem. We also construct a card-based physical zero-knowledge proof protocol for Zeiger, which enables a prover to physically show a verifier the existence of the puzzle's solution without revealing it.
Tokens have proliferated across blockchains in terms of number, market capitalisation and utility. Some tokens are tokenised versions of existing tokens -- known variously as wrapped tokens, fractional tokens, or shares. The repeated application of this process creates matryoshkian tokens of arbitrary depth. We perform an empirical analysis of token composition on the Ethereum blockchain. We introduce a graph that represents the tokenisation of tokens by other tokens, and we show that the graph contains non-trivial topological structure. We relate properties of the graph, e.g., connected components and cyclic structure, to the tokenisation process. For example, we identify the longest directed path and its corresponding sequence of tokens, and we visualise the connected components relating to a stablecoin and an NFT protocol. Our goal is to explore and visualise what has been wrought with tokens, rather than add yet another brick to the edifice.
Yifan Mao, Mengya Zhang, Shaileshh Bojja Venkatakrishnan, Zhiqiang Lin
Maximal extractable value (MEV) in which block proposers unethically gain profits by manipulating the order in which transactions are included within a block, is a key challenge facing blockchains such as Ethereum today. Left unchecked, MEV can lead to a centralization of stake distribution thereby ultimately compromising the security of blockchain consensus. To preserve proposer decentralization (and hence security) of the blockchain, Ethereum has advocated for a proposer-builder separation (PBS) in which the functionality of transaction ordering is separated from proposers and assigned to separate entities called builders. Builders accept transaction bundles from searchers, who compete to find the most profitable bundles. Builders then bid completed blocks to proposers, who accept the most profitable blocks for publication. The auction mechanisms used between searchers, builders and proposers are crucial to the overall health of the blockchain. In this paper, we consider PBS design in Ethereum as a game between searchers, builders and proposers. A key novelty in our design is the inclusion of future block proposers, as all proposers of an epoch are decided ahead of time in proof-of-stake (PoS) Ethereum within the game model. Our analysis shows the existence of alternative auction mechanisms that result in a better (more profitable) equilibrium to players compared to state-of-the-art. Experimental evaluations based on synthetic and real-world data traces corroborate the analysis. Our results highlight that a rethinking of auction mechanism designs is necessary in PoS Ethereum to prevent disruption.
The study explores an Ethereum blockchain-based data-sharing system for a computer assembly simulation game, emphasizing the relationship between gas limits and transaction speeds.The research integrates smart contracts for secure data storage of scores and player profiles.A significant challenge identified was the complexity of blockchain's variable transaction speeds for the average user.The research investigated how different gas limits affected transaction times, with experiments conducted across three networks.Results show that a gas limit of 200,000 to 300,000 resulted in transaction speeds of approximately 30 seconds.Increasing the gas limit to 400,000 to 500,000 reduced transaction times to 15-30 seconds, while a limit of 600,000 to 700,000 led to speeds below 15 seconds.These findings suggest a direct correlation between higher gas limits and quicker transaction validations.The research concludes that investing in higher gas can significantly reduce transaction times, presenting a trade-off between cost and speed in blockchain data-sharing for educational simulation media.
Open access
Manufacturing Process and Optimization
Additive Manufacturing and 3D Printing Technologies
The globalization of products and markets increases the distance between the origin of products and consumers. This leads to a condition where customers don't have information about the origins of their products. Thus, traceability has become an essential sub-system of manufacturing supply chain management. However, due to globalization and complexity of supply chain interactions among the suppliers and manufacturing enterprises, it is hard to pinpoint the exact contributions of different actors in a supply chain. Integrated supply network structure with suitable visibility and usage of real time data transfer is another area of great importance. This paper focuses on how NFT (Non-Fungible Token) coupled with smart contracts could utilize blockchain to make it easier to track the products in a supply chain. Explaining how NFT's could help in tracking the contributions of different stakeholders in a supply chain by tracking the product throughout the entire process of sourcing, production, and sale by using a digital twin. In a manufacturing supply chain enabled by NFT Technology, whenever raw materials are transferred and processed through the supply chain, an NFT would be attached to its digital twin which will capture the created values. Each NFT can easily and uniquely be known by its data stored. Data would be updated based on real time information and will enable the stakeholders to trace the product information about how much each company has contributed to the produced products. The data stored in the form of a smart contract in the blockchain prevents the data being entered from being destroyed, eliminated, or changed without permission. Thus, there is a secure data flow among different stakeholders.
This paper investigates the fundamental trade-offs between block safety, confirmation latency, and transaction throughput of proof-of-work (PoW) longest-chain fork-choice protocols, also known as PoW Nakamoto consensus. New upper and lower bounds are derived for the probability of block safety violations as a function of honest and adversarial mining rates, a block propagation delay limit, and confirmation latency measured in both time and block depth. The results include the first non-trivial closed-form finite-latency bound applicable across all delays and mining rates up to the ultimate fault tolerance. Notably, the gap between these upper and lower bounds is narrower than previously established bounds for a wide range of parameters relevant to Bitcoin and its derivatives, including Litecoin and Dogecoin, as well as Ethereum Classic. Additionally, the study uncovers a fundamental trade-off between transaction throughput and confirmation latency, ultimately determined by the desired fault tolerance and the rate at which block propagation delay increases with block size.
In cyber–physical–social systems, smart manufacturing has to overcome challenges, such as uncertainty, diversity, complexity in modeling, long-delayed responses to market changes, and human engineer dependency. DeFACT is a framework of parallel manufacturing in ManuVerse where the Decentralized Autonomous Organization-based interactions between parallel workers consisting of robotic, digital, and human workers are elaborated to transform from professional division to real-virtual division. In DeFACT, human workers are only responsible for 5% physical and mental work that is complex and creative, and the robotic and digital workers can take care of the rest. The perceptual and cognitive intelligence of digital workers are intensified by a manufacturing foundation model (MF-PC), where calibration and certification (C&C), and verification and validation (V&V) guarantee not only the accuracy of task models, but also the interpretability and controllability of feature learning. As a case study, the workflow of customized shoes of SANBODY Technology Company is illustrated to show how DeFACT breaks the time and space constraints, avoids production waste caused by aesthetic discrepancies with consumers, and truly realizes flexible manufacturing.
The final assembly of appliances and automotive industries is a rigorous process, that has limited capabilities of full traceability associated with: (1) the parts installed, (2) their fabrication processes, and (3) the assembly work. This is also the case for each of its sub-assemblies The many parts and sub-assemblies that compose the final assembly, make full traceability a challenging fit, that is almost unsurmountable. Such full traceability along the entire supply-chain is not existent today and must be based on documentation of most assembled parts, assembly tasks, and inspection tasks that compose the full assembled product. In addition, security measures are needed to prevent hostile hacking and unauthorized approach to the assembly documentation throughout the entire supply chain. The related documentation and repeated verifications require considerable effort and have many chances for human errors. So, automating these processes has a great value. This article expounds a framework that harnesses block-chain and smart-contract technology to offer traceable and protected documentation of the assembly process. We expand the concept of a Bill-Of-Assembly (BOA) to incorporate data from the bill of materials (BOM), the associated assembly activities, the associated activities’ specification parameters and materials, and the associated assembly resources (machines and/or operators). The paper defines the operation of the BOA with blockchain and smart-contract technology, for attaining full traceability, safety, and security, for the entire assembled product. Future research could extend the proposed approach to facilitate the usage of the BOA data structure in constructing a digital twin of the entire simulated system.
Briefing: To tackle the complexity of human and social factors in manufacturing systems, parallel manufacturing for industrial metaverses is proposed as a new paradigm in smart manufacturing for effective and efficient operations of those systems, where Cyber-Physical-Social Systems (CPSSs) and the Internet of Minds (IoM) are regarded as its infrastructures and the “Artificial systems”, “Computational experiments” and “Parallel execution” (ACP) method is its methodological foundation for parallel evolution, closed-loop feedback, and collaborative optimization. In parallel manufacturing, social demands are analyzed and extracted from social intelligence for product R&D and production planning, and digital workers and robotic workers perform the majority of the physical and mental work instead of human workers, contributing to the realization of low-cost, high-efficiency and zero-inventory manufacturing. A variety of advanced technologies such as Knowledge Automation (KA), blockchain, crowdsourcing and Decentralized Autonomous Organizations (DAOs) provide powerful support for the construction of parallel manufacturing, which holds the promise of breaking the constraints of resource and capacity, and the limitations of time and space. Finally, the effectiveness of parallel manufacturing is verified by taking the workflow of customized shoes as a case, especially the unmanned production line named FlexVega.
In the last 10 years, the Extended Reality technology (Virtual Reality, Augmented Reality, Mixed Reality) has been developing\nrapidly and with these developments a lot of business has started investing in these technologies, which inspired people from\ndifferent backgrounds and experiences to start working and adapting to these technologies, and coming with this raising interest\nin Extended Reality technology and the huge work fields that these technologies offer, a great new workspace and opportunities\nto people who work in the creative field. The Covid-19 pandemic caused a great digitalization movement has been started\nwhich forced a lot of people to rely on digital realities in a lot of their everyday life activities such as work and socializing\nactivities beside entertainment, which eventually led to more and more interest in technologies that are believed to have the\nability to improve the extended reality technology, such as NFTs (Non-Fungible Token). This research aims to understand the\nopportunities that new, modern and uprising technologies such as NFT can offer to Extended Reality technology, the effects of\nthe developments in the field of the Extended Reality technology upon NFTs and creative work, study new ways to develop\nmore opportunities in this field and understand the new form of HCI these technologies are creating and their impact on people's\nlives.