Blockchain-based system for subscription payments in circular economy model
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Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
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hdl:2117/357202
Tipus de documentProjecte Final de Màster Oficial
Data2021-07-02
Condicions d'accésAccés obert
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Abstract
The correct processing of electronic waste and equipment is a problem that introduces problems in several dimensions. Regarding the environment, both the manufacturing and dumping processes yield high amounts of pollution, and accelerate the exploitation of the natural resources of the planet. With regards to society, there is the need to reuse in more effective ways, so not only less resources are needed, but people with less purchasing power can also take the advantages of electronic devices. Lastly, a change of paradigm would also mean that the recycling process would be more transparent and accountable, and hence more organisations would be interested in engaging in such a business following the law. This project proposes a model to allow direct-debit-like blockchain-based payments. In it, users can subscribe to a certain service provider, while depositing the subscription payment in a mediator, that acts as a bank from where the service provider can collect the payment. Thanks to the blockchain backend used, payments can be made in an internal currency (token), managed by the organisations acting as mediators. The blockchain is able to immutably register and give accountability for the token transfers, contributing to the transparency needed in a circular economy system. Aside from the blockchain core, a number of other modules are used to form a complete infrastructure, aimed to serve as template for a blockchain-driven subscription system for electronic waste circular economy. A database keeps track of current stakeholders and their relationships, an API allows an easy interfacing between third parties and the system, and an automation engine enables the scheduling of tasks such as charging subscribers at the agreed time. After analyzing the model, we could assess that both the interaction between modules, and the overall functionality tests were successful, so the infrastructure was a feasible template, that could be adapted dependding on the specific use case. Regarding the performance of the private blockchain, we conducted different tests, that showed a high performance up to a certain load level, beyond which the decentralised ledger started behaving anomalously, errors could be observed, and the overall performance dropped. We concluded that the architecture, although simple and general, was a good basis, and future works could extend it and refine it in many aspects. Regarding the private blockchain, it proved a promising technology for this type of systems, but further work is needed in terms of optimisation and stabilisation of the service.
TitulacióMÀSTER UNIVERSITARI EN INNOVACIÓ I RECERCA EN INFORMÀTICA (Pla 2012)
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