https://tede.unioeste.br/handle/tede/5724 2026-09-10T13:21:40Z https://tede.unioeste.br/handle/tede/8642 Title: Codeverse: Um Jogo de RPG Digital para o Ensino e Aprendizagem de Conceitos Introdutórios de Programação Autor: Santana, Rayssa Mariana Silva Primeiro orientador: Boscarioli, Clodis Abstract: Teaching programming remains a major challenge, particularly in helping students understand introductory concepts and stay motivated. Codeverse: Hacking Worlds, an educational digital RPG developed in this work and based on the Revised Bloom’s Taxonomy, is designed to teach introductory programming content and provide an alternative way to reinforce foundational programmingconcepts.Theresearchwascarriedoutinseveralstages,includingaliteraturereview, a focus group with teachers to gather requirements, the creation of the Game Design Document, game development, the construction of a didactic sequence, and classroom implementation with students in the Technical High School in Informatics program. Data collection and analysis involved triangulation of pre- and post-tests, observations recorded in a logbook, and a questionnaire, providing an integrated view of learning, usability, and engagement. The results show learning gains with a normalized Hake gain of 0.40, along with evidence of increased autonomy, logical reasoning, and student engagement in the proposed activities. The findings indicate that educational digital games based on learning theories or taxonomies, such as Bloom’s Taxonomy, can enhance teaching and learning experiences in Computer Science. The evidence supports the conclusion that Codeverse has effectively integrated the cognitive, affective, and procedural dimensions of learning, making it a playful and accessible pedagogical resource. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação 2025-12-11T00:00:00Z https://tede.unioeste.br/handle/tede/8612 Title: Desenvolvimento e avaliação de uma estação retransmissora para redes LoRaWAN Autor: Ferreira, Julio Cezar da Silva Primeiro orientador: Camargo, Edson Tavares de Abstract: The growing demand for connectivity in Internet of Things applications has driven research into devices with long-range and low powerconsumption,suchasLoRatechnologyandtheLoRaWAN protocol, which organizes network communication. Despite advancements, physical obstacles and infrastructure limitations still compromise coverage and communication reliability in challenging scenarios. In this context, the TS011 LoRaWAN Relay specification and the implementation of a repeater using the LoRa Basics Modem library present an alternative to expand network coverage, reduce communication failures, and enable the operation of end devices with lower transmission power. However, there is still a lack of experimental evaluations with firmware adhering to this specification in the literature. Therefore, the objective of this work is to experimentally evaluate the operation of a LoRaWAN repeater developed with the LoRa Basics Modem library, as well as to analyze the relationship between reliability and energy consumption. In the first experiment, the operation of the repeater with the standard LoRa Basics Modem firmware was evaluated, based on six experimental arrangements and different operating conditions. The results showed that the repeater extended the network range and improved the message delivery rate in areas where the gateway’s range was limited or nonexistent. In low-coverage scenarios, the repeater proved indispensable to the network architecture, although its dynamic activation required the end devices to be restarted to adapt to the new topology. In the second experiment, an energy consumption assessment was performed to verify whether adopting higher fixed spreading factors could be considered a viable compromise in the face of increased reliability. The results show that increasing the spreading factor increases communication reliability and also energy consumption during transmission. However, this increase does not significantly impact total energy consumption, as the greatest energy cost is in the continuous operation of the device over time. In the third experiment, a spreading factor supervisor mechanism was incorporated into the LoRa Basics Modem firmware, designed to operate with higher fixed values and prioritize communication reliability. Compared to standard firmware, the supervisory mechanism increased message delivery by 92.8 percentage points, in addition to reducing the end device’s power consumption by eliminating the need to keep adaptive data rate mode active. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação 2026-05-20T00:00:00Z https://tede.unioeste.br/handle/tede/8562 Title: Desenvolvimento e avaliação de um equipamento eletrônico para monitorar odor no contexto de Cidades Inteligentes Autor: Xavier, Felipe Natã de Camargo Primeiro orientador: Camargo, Edson Tavares de Abstract: The increasing urbanization and the expansion of industrial and agro-industrial activities have intensified problems related to odor emissions and air quality degradation. The monitoring and identification of these pollutants remain challenging due to the cost of reference equipment and the limited availability of technologies for environmental regulation and control. In this context, this work presents the development and evaluation of an electronic system for odor monitoring and identification. The proposed system consists of a low-cost sensor array, including electrochemical sensors and a Photo Ionization Detector (PID), capable of detecting relevant odorant gases such as hydrogen sulfide (H2S), ammonia (NH3), sulfur dioxide (SO2), methanethiol (CH3SH), and volatile organic compounds (VOC). The device integrates an embedded system responsible for data acquisition, preprocessing, and storage, as well as remote data transmission using the LoRaWANprotocol. The experimental methodology included laboratory tests to evaluate the influence of temperature and humidity on sensor response, odor sample tests for odor profile analysis, experiments with known concentrations of H2S, and field campaigns in different scenarios, including composting environments, urban areas, and a dairy cattle barn. Additionally, the influence of the sampling regime (active and passive flow) was evaluated, highlighting the impact of the air intake system on sensor response dynamics. The results demonstrated that the system is capable of indicatively distinguishing odor profiles. The application of machine learning techniques, such as Kernel PCA and Random Forest, enabled pattern recognition, reinforcing the multivariate analysis approach typical of electronic noses. As an additional contribution, representative datasets of different odor emission scenarios were generated, including an urban dataset in the city of Toledo and an agricultural dataset in a dairy cattle environment. The results indicate that systems based on low-cost sensors, integrated with machine learning techniques and IoT infrastructure, represent a promising alternative for environmental monitoring and odor identification, particularly in distributed applications within the context of smart cities. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação 2026-04-28T00:00:00Z https://tede.unioeste.br/handle/tede/8355 Title: Elaboração e avaliação de um catálogo de requisitos não-funcionais em um contexto de domínio de aplicação de diplomas digitais Autor: GILNEK, Vitor Luiz Caldeira Primeiro orientador: Santander, Victor Francisco Araya Abstract: The adoption of the Digital Diploma in Brazil has created a context in which issuance and registration systems must comply with particularly rigorous quality standards. However, there is a lack of a systematized and structured definition of non-functional requirements (NFRs) for this domain, which hinders consistent specification and compromises well-founded architectural decision-making. This work addresses this gap by proposing a systematized catalog of NFRs for the Digital Diploma domain, motivated by the need to guide the development of more robust solutions aligned with regulatory requirements. The objective of this research was to design, model, and validate a catalog based on the NFR Framework, represented through Softgoal Interdependency Graphs(SIGs).Themethodologycombinedlegislativeanalysis,anobservational study of a real-world system, a Systematic Literature Review, application of the ATAM method, SIG modeling, expert validation through a survey, and a Proof of Concept to assess practical applicability. The results indicate that the catalog is comprehensive, technically consistent, and considered useful by specialists, while also demonstrating applicability in real-world scenarios. The proposed operationalizations showed potential to support architectural decision-making and inspire functionalities in other systems. Thus, this work delivers an updated and applicable artifact that contributes to the development of more secure and interoperable Digital Diploma systems. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação 2025-12-18T00:00:00Z