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2025
- 2025
Diego Emanuel Ferreira da Rocha
Automated identification of elementary processes through HTTP request analysis
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s) - 2025
Dione Ramos Canuto Moura
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)TopicsSiCaPEx, the Brazilian Army Personnel Registration System, plays an essential role in the efficient management of information for personnel processes in the Brazilian Army. However, over time, an increase in operational difficulties and software performance has been observed, evidenced by the growing number of support requests related to the system's usability. This work aims to analyze the usability of SiCaPEx, examining the interaction between users and the system from 2019 to 2023, and propose improvements based on the results obtained, implementing them in a practical way. Effective personnel management in the Army directly depends on the reliability of the data processed by SiCaPEx. The methodology adopted included a quantitative-qualitative approach, which combined bibliographic research and documentary analysis to explore the usability challenges faced. The usability assessment was carried out through the SUS (System Usability Scale) questionnaire and Nielsen's Heuristic Evaluation, offering a comprehensive view of users' perceptions. The collected data were statistically analyzed using specialized software, such as SPSS, R-Studio, Iramuteq and Excel. The results indicated significant usability problems in SiCaPEx. The overall score of the SUS questionnaire was below expectations, highlighting the need for improvements in areas such as ease of learning, efficiency, memorization, error minimization and user satisfaction. These problems were highlighted by the respondents and validated by data analysis. Based on the suggestions for improvement identified, an Internal Memorandum was prepared and a FAQ (Frequency Answer the Question) was implemented to answer frequently asked questions about the system, an initiative that was well evaluated by users. It is expected that the results of this research will contribute significantly to more efficient personnel management, directly impacting the administrative and operational activities of the Brazilian Army. - 2025
Emanuel Galhardo de Oliveira
DevOps assessment model in cloud environments with DORA metrics: a study in the financial sector
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s) - 2025
Sandro Leite Furtado
Identification of additional security factors and their applicability in the gov.br identity
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s) - 2025
Tássio Correia da Silva
3SW: an adapted CIS Controls v8.1 model for mitigating threats to Web servers
PhD Thesis, Federal University of Espirito Santo (Brazil)
Advisor(s)
2024
- 2024
Arthur Rocha Temporim de Lacerda
Gamified Chatbot Management Process: A way to build gamified chatbots
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)TopicsChatbot development frameworks provide a range of construction methods; however, established processes like the Chatbot Management Process (CMP) often lack activities specifically tailored to enhance user engagement. This thesis presents the Gamified Chatbot Management Process (GCMP), an extension of the CMP that integrates and adapts activities to boost user interaction with chatbots. Three iterations of the GCMP were created, each incorporating enhancements driven by the Goal-Question-Metric (GQM) methodology. This iterative approach supported the continuous evaluation and evolution of the process. Experiments with real users indicated positive engagement, with all participants successfully meeting the set objectives. Furthermore, the average deployment time was reduced by 66% from the initial to the final version. User assessments also gave top ratings for the quality of responses generated by the chatbot. These results demonstrate the effectiveness of the proposed GCMP. The findings suggest a strong positive correlation between implementing the GCMP and improvements in developing gamified chatbots. The advances in both chatbot functionality and gamification techniques highlight the potential for widespread adoption of the GCMP as a reliable and effective approach for creating gamified chatbots. - 2024
Éber Junio Borges Moreira
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)The scheduling of academic resources in higher education institutions is a highly complex problem, involving the allocation of classes, professors, time slots, and physical spaces to meet multiple institutional constraints and preferences. This paper presents the SARA model (Academic Resource Scheduling System), designed to offer flexibility and adaptability to the specific needs of higher education institutions. The research was conducted in two main stages: a systematic literature review and the proposal of the SARA model. The systematic review enabled the mapping of widely used strategies, algorithms, and constraints in the literature, providing theoretical foundations for the model's development. The SARA proposal integrates features such as customization, integration with academic systems, and the application of optimization algorithms, promoting a comprehensive and adaptable approach to scheduling in university environments. The model was validated through a case study at the University of Brasília (UnB), in a large-scale and highly complex environment. Preliminary results demonstrated the model's feasibility and effectiveness in meeting the institution's specific demands, highlighting its potential applicability in various institutional contexts. The research contributes to theoretical and practical advancements in academic management, presenting a solution that combines methodological rigor with practical applicability.
2023
- 2023
Edmilson Cosme da Silva
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)Researchers have been investigating attrition in higher education, identifying two categories - students who leave the university and those who abandon higher education altogether, negatively affecting institutions, students, and society. Since 1995, in Brazil, the creation of ANDIFES has led to more frequent studies on graduation, retention, and attrition in Brazilian universities, focusing on institutional attrition, characterized by a student's departure from their original course. The University of Brasília (UnB) has implemented strategies to increase student retention in undergraduate courses. This work aimed to develop and test an analysis model to predict attrition in face-to-face courses, through a Systematic Literature Review to identify impact factors and define indicators extracted from UnB's academic systems. The model, named MAGRA, combines indicators with machine learning algorithms to identify students at risk of dropping out. Tests conducted at the Faculdade de Ciências e Tecnologias em Engenharia (FCTE) and UnB indicated that enrollment frequency in subjects could predict completion difficulties. The research suggests that to improve the early identification of at-risk students, adjustments in feedback mechanisms, the inclusion of new systems, improvement in data quality, and adjustments in algorithm parameters are necessary. - 2023
Luciana Santos de Assis
Critical Evaluation and Case Study on the Implementation of Gamification in Organizational Contexts
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)Gamification is a way to use game elements and apply them in real-world contexts to motivate people and create a more productive environment. Considered a tool aimed at increasing engagement, gamification can be applied across various areas, including organizational activities. This work proposes a Case Study at the Brazilian Agricultural Research Corporation (Embrapa), analyzing the effects of a gamification solution applied to the Innovation Macroprocess (MPI), which is responsible for managing research, development, and innovation solutions for the sustainability of the Brazilian agribusiness. The main goal is to evaluate the effectiveness of gamification in enhancing engagement, collaboration, and motivation of employees regarding the use of the Asset Management System (Gestec), a computational tool that implements part of the MPI. Initially, a study of the theoretical foundations of gamification was conducted, followed by a Systematic Literature Review (SLR) to investigate the main frameworks, techniques, and effects of gamification solutions in organizational environments. Subsequently, a Case Study was initiated with the identification of the motivational profile of the target audience and the development of a project that includes the application of sixteen gamification requirements. Of these, ten requirements were prioritized and implemented for the experimentation phase, which was made available to a group of twenty-seven participants to evaluate the effects of the proposed solution. Overall, the results indicated an improvement in the motivational perception regarding the use of the system. - 2023
Públio Pastrolin Cavalcante
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)TopicsThe gamification of non-playful activities has gained traction in the industrial, service, and educational sectors, demonstrating that introducing game elements into an environment can make activities more engaging, fun, and enjoyable. This approach has proven to be an effective strategy for motivating and involving individuals, recognized as a valuable tool for managers. In the context of the Military Police of the Federal District, which is responsible for overt policing and maintaining public order in the nation's capital, Intelligence Activity plays a crucial role in supporting strategic, tactical, and operational decisions. This study introduces the Gamified Intelligence Reporting Process (GIRP), developed for the Military Police Intelligence System. The gamification model was based on the Octalysis framework, supplemented by statistical techniques derived from the Intrinsic Motivation Inventory and document analyses. The aim of the GIRP is to improve the quality of intelligence reports through gamification, benefiting from an iterative evaluation and planning process. Additionally, the work provides a theoretical foundation on gamification, Intelligence Activity, Public Security, and an overview of the Military Police of the Federal District.
2021
- 2021
Ana Cláudia Alves Mendes Araújo
REQGAME - Requirements Elicitation with Gamification - An Experiment in Software Projects in a Federal Public Agency
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)The success of a software project is closely linked to the clarity and accuracy of its requirements. These requirements outline the project scope and establish the expected operation of the software. Thus, the requirement elicitation phase is a critical milestone in the software development lifecycle, demanding excellent communication, cooperation, and motivation skills among all stakeholders. However, challenges such as effective collaboration and scheduling coordination can compromise engagement and active participation in this process. To overcome these obstacles and stimulate participation, gamification has proven to be an effective strategy by applying game mechanics in non-game contexts. Within this framework, Octalysis, a gamification framework developed by Yu-Kai Chou, offers a methodology to tailor and customize gamification according to the user profiles involved. This study introduces REQGame, an innovative method that integrates gamification into the requirement elicitation process, based on the Octalysis framework. The aim is to enhance the involvement and engagement of participants, also evaluating the positive effects that the implementation of gamification techniques can bring to the process. - 2021
Taylor Rodrigues Lopes
Method for Migrating Legacy Monolithic Systems to Microservices Architecture
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)TopicsCurrently, most organizations depend on Information Systems. In general, these systems are built based on monolithic architecture, with centralized execution on a single server. Over the years, however, the constant changes to meet business needs and the accumulation of technical debt, have made these systems increasingly larger and complex, making aspects such as maintainability and scalability difficult. This difficult reality experienced by many organizations motivated the present work to investigate a new architectural trend called microservices. Popularized by companies like Netflix and Amazon, microservices can be an alternative for the modernization of legacy systems, providing low downtime and imperceptible impact to the end user. In this new architecture, the software is broken down into small parts that work independently and autonomously, bringing some improvements in terms of software quality attributes. However, there are also challenges and tradeoffs - adopting microservices tends to be a difficult process and not rarely unsuccessful, mainly due to the lack of methods to conduct the migration process. In this sense, based on scientific studies, this work presents a migration method entitled Microservice Full Cycle - MFC, inspired by the software development life cycle and DevOps strategies. The goal is to assist legacy software systems to gradually evolve guided by a set of steps and activities common to the microservice architecture. The validation of the MFC method is done through an experiment in a real application, showing advantages such as more cohesive and uncoupled codes, technological independence, agility in build, test and deploy (automation), scalability under high demand, greater interoperability and integration, geodistributed capabilities, plus realtime monitoring and feedback.
2020
- 2020
Felipe Evangelista dos Santos
Implementation of the integration of the UnB service bus with monitoring tools
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)The adoption of a Service-Oriented Architecture (SOA) in the implementation of services and microservices in distributed system applications facilitates the use of development standards, maintenance, flexibility in service development, and interoperability between services and systems. The Computing Center (CPD) of the University of Brasília (UnB) engages in various software automation processes, ranging from the maintenance of existing systems to the development and deployment of new technological solutions. Continuous monitoring of the performance of services, microservices, and systems becomes crucial. This study, of an exploratory nature, aims to investigate solutions and tools for implementing and managing the monitoring of distributed services and systems at UnB, through systematic mapping. The research was theoretically grounded to develop a model that was applied to the monitoring module of the UnB service bus. Simulations were conducted with the developed solution, allowing the analysis of the integration between the service bus and the proposed monitoring tool.
2019
- 2019
James Taylor Faria Chaves
Master's Thesis in Applied Computing, University of Brasília (Brazil)
Advisor(s)This work introduces the NatVI framework, focusing on the integration between Service-Oriented Architecture (SOA), Agile Development, and Quality Assurance (QA). Developed from a literature review that identified and evaluated the trade-offs between SOA and agile methods, NatVI aims to provide a comprehensive solution for the software development cycle, especially for service-based applications. It includes best practices from SOA and agile principles, emphasizing the importance of QA, essential for software projects in dynamic business environments. A case study in a unit of the Brazilian federal government assessed the application of NatVI, observing improvements in software quality, understanding of agile methods, and client satisfaction with the development process. The study also highlighted limitations, such as the size of the IT team and the number of clients involved, leading to a subjective evaluation through semi-structured interviews. The preliminary results suggest that NatVI has potential, but also highlight the need for further research, paving the way for future studies on emerging technologies, such as containers and DevOps.