TCC - Bacharelado em Ciência da Computação (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/415
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Item Uso de Blockchain na rastreabilidade de produtos: uma revisão sistemática da literatura(2024-10-03) Alves, Edvaldo Ribeiro; Lins, Fernando Antonio Aires; http://lattes.cnpq.br/2475965771605110; http://lattes.cnpq.br/1693577382765854In recent times, Blockchain has ceased to be exclusively associated with the digital currency Bitcoin and has expanded its applications to a variety of sectors such as healthcare, product traceability, the Internet of Things, and education. Traceability is becoming increasingly crucial in various sectors due to a combination of factors involving security, transparency, sustainability, and operational efficiency. Traceability has become an essential strategic tool to ensure safety, enhance transparency and efficiency, and meet regulatory and ethical demands. However, a gap has been observed in the current literature concerning the review and analysis of research initiatives focused on product traceability using Blockchain, particularly detailing how Blockchain operates in this context and the improvements the technology brings to this environment. Although there are studies exploring the application of Blockchain technology in different areas, the current literature lacks a comprehensive synthesis specifically addressing product traceability. This gap is particularly relevant given the growing interest and importance of traceability in the supply chain to ensure transparency, authenticity, and product safety. Therefore, this work aims to fill this gap by providing an analysis of existing research initiatives in this area. The present work seeks to comprehensively explore the implications of this combination, analyzing how Blockchain can transform the way products are tracked and managed. In this context, the main contribution of this paper is a systematic review of existing research on Blockchain-based systems developed to enhance traceability. This involves understanding how Blockchain is applied to track and verify the improvements it brings to those who adopt this combination. This systematic mapping also offers an overview of current research trends in this area. Additionally, it sheds light on research and innovation challenges that remain open in this area.Item Análise de envelhecimento de software em uma plataforma de Blockchain(2022-05-04) Silva, Douglas Dias da; Andrade, Ermeson Carneiro de; http://lattes.cnpq.br/2466077615273972; http://lattes.cnpq.br/5082801636483279Software aging is a phenomenon that plagues many long-running complex computer systems, which exhibit performance degradation or an increasing failure rate. Such a phenomenon may also be present in blockchain platforms. However, there are still no works focused on analyzing this phenomenon on these platforms. Thus, we adopted the Cardano blockchain to analyze software aging due to the presence of this technology in critical projects, its open-source nature and for being a sustainable solution. Considering the analysis of running a Cardano node on two computers with different configurations, we found evidence of software aging through memory degradation that was confirmed by the Mann-Kendall test. By analyzing the running processes, we confirmed that cardanonode (the main process of the platform) is the process possibly responsible for such degradation.Item Uma metodologia para suporte à tomada de decisão quanto ao uso de blockchain na área de registros públicos(2021-02-11) Silva, Saulo Gomes da; Lins, Fernando Antonio Aires; http://lattes.cnpq.br/2475965771605110; http://lattes.cnpq.br/7125624100024345The emergence of Bitcoin and Blockchain technology has changed the world of ecommerce. These technologies have the potential to one day become the standard for Web applications, through decentralized applications. Decentralized applications are flexible, transparent, distributed, resilient applications and have greater growth power, in terms of scalability and availability, when compared to the current software model (clientserver architecture). There are limitations that prevent the use of Blockchain technology for solving problems involving data and information distribution. Because there are limitations, designers and enthusiasts who are not well educated about the technology can make mistakes and use it in a way that damages the solution to which it belongs, in addition to preventing it from reaching its fullness. Due to the possibilities that Blockchain technology and decentralized applications bring, this work aims to design a methodology to assist in decision making regarding the use of Blockchain for the government environment, specifically in the area of public records. To exemplify the application of the methodology, a case study was carried out using the service of registration and consultation of registries in notaries, which service is supported by a system provided by the National Council of Justice. As a result, it was possible to demonstrate that the methodology process creates an implementation profile for Blockchain technology, a profile that allows the system designer to choose and configure Blockchain platforms for the desired purpose. The process result indicates that the Blockchain technology is suitable for the purpose of notary service, ensuring the proper use of technology and avoiding possible losses.