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196 results on '"Colanzi, Thelma"'

1. Insights on Microservice Architecture Through the Eyes of Industry Practitioners

Author

Nogueira, Vinicius L., Felizardo, Fernando S., Amaral, Aline M. M. M., Assuncao, Wesley K. G., and Colanzi, Thelma E.

Subjects
Computer Science - Software Engineering
Abstract

The adoption of microservice architecture has seen a considerable upswing in recent years, mainly driven by the need to modernize legacy systems and address their limitations. Legacy systems, typically designed as monolithic applications, often struggle with maintenance, scalability, and deployment inefficiencies. This study investigates the motivations, activities, and challenges associated with migrating from monolithic legacy systems to microservices, aiming to shed light on common practices and challenges from a practitioner's point of view. We conducted a comprehensive study with 53 software practitioners who use microservices, expanding upon previous research by incorporating diverse international perspectives. Our mixed-methods approach includes quantitative and qualitative analyses, focusing on four main aspects: (i) the driving forces behind migration, (ii) the activities to conduct the migration, (iii) strategies for managing data consistency, and (iv) the prevalent challenges. Thus, our results reveal diverse practices and challenges practitioners face when migrating to microservices. Companies are interested in technical benefits, enhancing maintenance, scalability, and deployment processes. Testing in microservice environments remains complex, and extensive monitoring is crucial to managing the dynamic nature of microservices. Database management remains challenging. While most participants prefer decentralized databases for autonomy and scalability, challenges persist in ensuring data consistency. Additionally, many companies leverage modern cloud technologies to mitigate network overhead, showcasing the importance of cloud infrastructure in facilitating efficient microservice communication.

Published
2024

2. Gamification in Software Engineering Education: a Tertiary Study

Author

Tonhão, Simone, Shigenaga, Marcelo, Herculani, Julio, Medeiros, Andressa, Amaral, Aline, Silva, Williamson, Colanzi, Thelma, and Steinmacher, Igor

Subjects
Computer Science - Software Engineering
Abstract

As the significance of Software Engineering (SE) professionals continues to grow in the industry, the adoption of gamification techniques for training purposes has gained traction due to its potential to enhance class appeal through game-derived elements. This paper presents a tertiary study investigating the application of gamification in Software Engineering (SE) education. The study was conducted in response to recent systematic literature reviews and mappings on the topic. The findings reveal that the areas of SE most frequently gamified are Software Testing and Software Quality, with competition and cooperation being the most commonly utilized gamification elements. Additionally, the majority of studies focus on structural gamification, where game elements are employed to modify the learning environment without altering the content. The results demonstrate the potential of gamification to improve students' engagement and motivation throughout the SE learning process, while also impacting other aspects such as performance improvement, skill development, and fostering good SE practices. However, caution is advised as unplanned and incorrectly applied gamification measures may lead to significant declines in performance and motivation. (English Version of the paper in Portuguese available here: HTTP://doi.org/10.1145/3613372.3614193

Published
2024

9. Re-engineering Legacy Systems as Microservices: An Industrial Survey of Criteria to Deal with Modularity and Variability of Features

Author

Carvalho, Luiz, Garcia, Alessandro, Assunção, Wesley K. G., Colanzi, Thelma Elita, Bonifácio, Rodrigo, Tizzei, Leonardo P., Mello, Rafael de, Cerqueira, Renato, Ribeiro, Márcio, Lucena, Carlos, Lopez-Herrejon, Roberto E., editor, Martinez, Jabier, editor, Guez Assunção, Wesley Klewerton, editor, Ziadi, Tewfik, editor, Acher, Mathieu, editor, and Vergilio, Silvia, editor

Published
2023
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15. Re-engineering Legacy Systems as Microservices: An Industrial Survey of Criteria to Deal with Modularity and Variability of Features

Author

Carvalho, Luiz, primary, Garcia, Alessandro, additional, Assunção, Wesley K. G., additional, Colanzi, Thelma Elita, additional, Bonifácio, Rodrigo, additional, Tizzei, Leonardo P., additional, Mello, Rafael de, additional, Cerqueira, Renato, additional, Ribeiro, Márcio, additional, and Lucena, Carlos, additional

Published
2022
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18. A Review of Ten Years of the Symposium on Search-Based Software Engineering

Author

Colanzi, Thelma Elita, Assunção, Wesley Klewerton Guez, Farah, Paulo Roberto, Vergilio, Silvia Regina, Guizzo, Giovani, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Nejati, Shiva, editor, and Gay, Gregory, editor

Published
2019
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19. Bio-Inspired Optimization of Test Data Generation for Concurrent Software

Author

Vilela, Ricardo F., Pinto, Victor H. S. C., Colanzi, Thelma E., Souza, Simone R. S., Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Nejati, Shiva, editor, and Gay, Gregory, editor

Published
2019
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25. On the Usefulness of Automatically Generated Microservice Architectures

Author

Carvalho, Luiz, Colanzi, Thelma Elita, Assuncao, Wesley K. G., Garcia, Alessandro, Pereira, Juliana Alves, Kalinowski, Marcos, de Mello, Rafael Maiani, de Lima, Maria Julia, and Lucena, Carlos

Abstract

The modernization of monolithic legacy systems with microservices has been a trend in recent years. As part of this modernization, identifying microservice candidates starting from legacy code is challenging, as maintainers may consider many criteria simultaneously. Multi-objective search-based approaches represent a promising state-of-the-art solution to support this decision-making process. However, the rationale to adopt each microservice candidate automatically identified by these approaches is poorly investigated in industrial cases. Furthermore, studies with these approaches have not carefully investigated how maintainers reason and make decisions when designing microservice architectures from legacy systems. To address this gap, we conducted an on-site case study with maintainers of an industrial legacy system to investigate the usefulness of automatically generated microservice architectures. We analyze design decisions pointed out by the maintainers when reasoning about microservice candidates using several criteria at the same time. Our study is the first to assess a search-based approach involving actual maintainers conceiving microservice architectures in an industrial setting. Therefore, firstly, we considered individual evaluation of microservice candidates to understand the rationale for identifying a service. Secondly, we conducted a focus group study with maintainers with the goal of investigating design decisions at an architectural level. The results show that: (i) the automated approach is able to identify useful microservices; (ii) the criteria observed by previous studies are, in fact, considered by maintainers; and (iii) the maintainer profiles, i.e., the preferred granularity for microservice, highly affect design decisions. Finally, we observed the maintainers needed little effort in adjusting the automatically identified microservices to make them adoptable. In addition to indicating a promising potential of search-based approaches to generate microservice architectures, our findings highlight the need for: (i) interactive and/or customizable approaches that enable maintainers to include their preferences during the search process, and (ii) flexible or automated selection of criteria that fits the scenario in which the modernization is taking place.

Published
2024
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28. Optimizing Software Product Line Architectures with OPLA-Tool

Author

Féderle, Édipo Luis, Ferreira, Thiago do Nascimento, Colanzi, Thelma Elita, Vergilio, Silvia Regina, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Barros, Márcio, editor, and Labiche, Yvan, editor

Published
2015
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29. Optimizing Aspect-Oriented Product Line Architectures with Search-Based Algorithms

Author

Mariani, Thainá, Vergilio, Silvia Regina, Colanzi, Thelma Elita, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Barros, Márcio, editor, and Labiche, Yvan, editor

Published
2015
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30. Interaction in search-based PLA

Author

Freire, Willian, Tupan Rosa, Cláudia, Maria Malachini Miotto Amaral, Aline, and Colanzi, Thelma Elita

Abstract

The Software Product Line (SPL) approach is a reuse technique derived from other engineering disciplines to develop a family of products within a specific domain. An essential artifact of SPL is the Software Product Line Architecture (PLA), which identifies elements characterized by variation points, variability, and variants. PLA anticipates design decisions and aims to achieve critical features such as reusability and modularity. As a multiobjective optimization problem, the interactive multiobjective optimization approach for PLA design (iMOA4PLA) employs specific metrics to optimize the PLA problem. The iMOA4PLA is implemented through the OPLA-Tool v2.0, with the decision maker (DM) assuming a participatory role in the optimization process, guiding it through various strategies. In this context, machine learning (ML) algorithms assist the DM. We conducted two experiments to evaluate the proposed model - one quantitative and one qualitative. The results indicate that the approach facilitates the generation of PLA alternatives that align with the DM's expectations. Additionaly, strategies employed are highly efficient in assisting the DM with the PLA evaluation process. This research presents a model that helps decision-makers optimize the Software Product Line Architecture while enabling an interactive process that leverages machine learning algorithms. The scientific contribution of this work lies in providing a framework for the design and evaluation of the PLA that leverages the benefits of machine learning algorithms.hat utilizes machine learning algorithms.

Published
2023
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31. A Pattern-Driven Mutation Operator for Search-Based Product Line Architecture Design

Author

Guizzo, Giovani, Colanzi, Thelma Elita, Vergilio, Silvia Regina, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Le Goues, Claire, editor, and Yoo, Shin, editor

Published
2014
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35. On the Application of the Multi-Evolutionary and Coupling-Based Approach with Different Aspect-Class Integration Testing Strategies

Author

Assunção, Wesley Klewerton Guez, Colanzi, Thelma Elita, Vergilio, Silvia Regina, Pozo, Aurora, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ruhe, Günther, editor, and Zhang, Yuanyuan, editor

Published
2013
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36. Applying Search Based Optimization to Software Product Line Architectures: Lessons Learned

Author

Colanzi, Thelma Elita, Vergilio, Silvia Regina, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Fraser, Gordon, editor, and Teixeira de Souza, Jerffeson, editor

Published
2012
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37. Extending UML Components to Develop Software Product-Line Architectures: Lessons Learned

Author

Contieri, Antonio C., Jr, Correia, Guilherme G., Colanzi, Thelma E., Gimenes, Itana M. S., Oliveira, Edson A., Jr, Ferrari, Sandra, Masiero, Paulo C., Garcia, Alessandro F., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Crnkovic, Ivica, editor, Gruhn, Volker, editor, and Book, Matthias, editor

Published
2011
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38. Integration Test of Classes and Aspects with a Multi-Evolutionary and Coupling-Based Approach

Author

Colanzi, Thelma Elita, Assunção, Wesley Klewerton Guez, Vergilio, Silvia Regina, Pozo, Aurora, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Cohen, Myra B., editor, and Ó Cinnéide, Mel, editor

Published
2011
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45. Composite Refactoring: Representations, Characteristics and Effect on Software Projects

Author

Bibiano, Ana Carla, Uchôa, Anderson, Assunção, Wesley K. G., Tenório, Daniel, Colanzi, Thelma E., Vergilio, Silvia Regina, and Garcia, Alessandro

Subjects
code refactoring, composite refactoring, software maintenance, software project,systematic mapping
Abstract

Code refactoring is a code transformation that aims to improve software quality. A composite refactoring (or, simply, composites) is defined by two or more interrelated refactorings. Recent studies found out that developers often apply composite refactorings. Each composite is applied in software projects and needs to be somehow represented and have its own characteristics (e.g. its code scope) as well as its effects on software quality. However, these basic elements of composites are rarely studied in a systematic manner. The lack of systematic knowledge also misguides the design of automated support tools for composites, including tools for detecting and recommending composites in software projects. Also, empirical evidence about the effect of composites is still limited and conflicting. Researchers have either partial or controversion views about basic elements of composite refactorings. Studies suggest composites remove code smells, and other studies mention composites introduce code smells, this is an example of a literature conflict. There is not a mapping study on composite refactorings, an aggregation of knowledge about composite refactorings, including its possible representations, characteristics, and possible effects. We then conducted a systematic mapping with 124 primary empirical studies about refactoring. Our systematic mapping summarizes the current knowledge on composites and also presents a conceptual framework of composites. A conceptual framework is a design artifact to characterize a phenomenon. Our conceptual framework presents seven representation models, nine characteristics, and thirteen effects of composites. We found out that studies used multidimensional representations, like graphs, to generate ``paths'' of refactorings and know what refactoring(s) may be suggested. On composite characteristics, studies mentioned developers often finish a composite in a month. Studies do not investigate why composites are applied in several weeks, like a month. We then discussed existing gaps about composites. Studies suggested composites can affect internal and external software quality. However, studies investigated in-depth the composite effect on internal software quality, e.g, code smells. The composite effect on external software quality is little explored, mainly about the correctness attribute.&nbsp

Published
2022
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46. O Ensino de Qualidade de Software nas IES Públicas do Paraná: um Estudo Exploratório

Author

Bettin, Giovanna, Herculani, Julio B., Shigenaga, Marcelo Y., Leal, Gislaine C. L., Balancieri, Renato, OliveiraJr, Edson, Colanzi, Thelma E., and Amaral, Aline M. M. M.

Abstract

A Qualidade de Software (QS) tem um impacto social e demanda uma responsabilidade significativa com o meio ambiente. Desse modo, é possível relacionar a importância do ensino de QS aos futuros profissionais que estarao envolvidos no ciclo de vida dos softwares. O ensino de QS costuma ser realizado em disciplinas relacionadas. Em alguns casos isolados, a disciplina de QS ganha uma carga horária própria. Porém, não se sabe exatamente como QS tem sido ministrada em disciplinas nas Instituicoes de Ensino Superior (IES), especialmente naquelas que recebem financiamento publico. Assim, torna-se relevante o estudo do panorama do ensino de QS em IES do estado do Paraná. Este artigo apresenta um estudo exploratório sobre tal panorama. Os dados foram obtidos por meio dos sites disponibilizados pelas IES e tabelados. Identificou-se a baixa frequência de ensino de QS como disciplina especifica. O material que descreve tanto os perfis dos egressos e quanto dos cursos não demonstra uma atenção da importância da produção de produtos confiáveis de maneira clara e específica. Hipóteses são apresentadas e discutidas para trabalhos futuros.

Published
2022
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