Wesley K. G. Assunção

North Carolina State University

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Alexander Egyed

Johannes Kepler University of Linz

Sílvia Regina Vergílio

Universidade Federal do Paraná

Thelma Elita Colanzi

Universidade Estadual de Maringá

Luciano Marchezan

Johannes Kepler University of Linz

Alessandro Garcia

Pontifical Catholic University of Rio de Janeiro

Gabriela Karoline Michelon

Johannes Kepler University of Linz

Jabier Martinez

Association of Electronic and Information Technologies

Roberto E. Lopez-Herrejon

École de Technologie Supérieure

Lukas Linsbauer

Technische Universität Braunschweig

Edvin Herac

Johannes Kepler University of Linz

Cooperative Institutions

Pontifical Catholic University of Rio de Janeiro

Johannes Kepler University of Linz

Universidade Federal de Pernambuco

Universidade Tecnológica Federal do Paraná

Universidade Estadual de Maringá

Nanjing University

Universidade Estadual do Oeste do Paraná

Universidade Federal do Paraná

Universidade Federal Rural de Pernambuco

Universidade Federal de Alagoas

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The Symposium on Search-Based Software Engineering: Past, Present and Future

Information and Software Technology (2020)

Thelma Elita Colanzi Wesley K. G. Assunção Sílvia Regina Vergílio Paulo Roberto Farah Giovani Guizzo

Search-based software engineering

10.1016/j.infsof.2020.106372

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Citations (34)

Open-source software product line extraction processes: the ArgoUML-SPL and Phaser cases

Empirical Software Engineering (2022)

Rodrigo André Ferreira Moreira Wesley K. G. Assunção Jabier Martinez Eduardo Figueiredo

Abstract Software Product Lines (SPLs) are rarely developed from scratch. Commonly, they emerge from one product when there is a need to create tailored variants, or from existing variants created in an ad-hoc way once their separated maintenance and evolution become challenging. Despite the vast literature about re-engineering systems into SPLs and related technical approaches, there is a lack of detailed analysis of the process itself and the effort involved. In this paper, we provide and analyze empirical data of the extraction processes of two open-source case studies, namely ArgoUML and Phaser. Both cases emerged from the transition of a monolithic system into an SPL. The analysis relies on information mined from the version control history of their respective source-code repositories and the discussion with developers that took part in the process. Unlike previous works that focused mostly on the structural results of the final SPL, the contribution of this study is an in-depth characterization of the processes. With this work, we aimed at providing a deeper understanding of the strategies for SPL extraction and their implications. Our results indicate that the source code changes can range from almost a fourth to over half of the total lines of code. Developers may or may not use branching strategies for feature extraction. Additionally, the problems faced during the extraction process may be due to lack of tool support, complexity on managing feature dependencies and issues with feature constraints. We made publicly available the datasets and the analysis scripts of both case studies to be used as a baseline for extractive SPL adoption research and practice.

Software product line

Feature model

Phaser

10.1007/s10664-021-10104-3

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Citations (12)

ModelVars2SPL: From UML Class Diagram Variants to Software Product Line Core Assets

Springer eBooks (2022)

Wesley K. G. Assunção Sílvia Regina Vergílio Roberto E. Lopez-Herrejon

Software product line

Feature model

Separation of concerns

Implementation

Code reuse

10.1007/978-3-031-11686-5_9

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Citations (0)

On the Usefulness of Automatically Generated Microservice Architectures

IEEE Transactions on Software Engineering (2024)

Luiz Carvalho Thelma Elita Colanzi Wesley K. G. Assunção Alessandro Garcia Juliana Alves Pereira

Microservices

10.1109/tse.2024.3361209

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Citations (2)

Designing a Test Model for a Configurable System: An Exploratory Study of Preprocessor Directives and Feature Toggles

Stefan Fischer Gabriela Karoline Michelon Wesley K. G. Assunção Rudolf Ramler Alexander Egyed

Testing is important in software development, but it has high cost. Thus, techniques to reduce the cost of software testing have been proposed. Model-based testing, one of such techniques, focuses on automatizing the generation of test cases. In the context of highly configurable systems, model-based testing must capture the system behavior and also encode the variability that exists among the variants. Previous research has shown promising results in applying model-based testing to configurable systems. Test models that encode variability into them directly improve the reasoning for faults from interactions. However, there is no study about the use of different variability mechanisms to encode variability in test models. In this paper, we investigate advantages and drawbacks of test model designs exploring the use of two variability mechanisms, namely preprocessor directives and feature toggles. The results are discussed in regard to run-time reasoning and re-configuration, alongside with metrics about complexity and maintainability. With this work, we contribute to the testing activity of highly configurable systems by providing engineers insights of comparing two well-known and widely used variability mechanisms, which can support informed decisions when choosing for which mechanisms to use for model-based testing.

ENCODE

Model-Based Testing

Maintainability

Feature (linguistics)

Integration testing

10.1145/3571788.3571795

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Citations (1)

Fulfilling Industrial Needs for Consistency Among Engineering Artifacts - Evaluation Data

Zenodo (CERN European Organization for Nuclear Research) (2022)

Luciano Marchezan Wesley K. G. Assunção Edvin Herac Felix Keplinger Alexander Egyed

This is a dataset with the evaluation data from the paper entitled "Consistency Checking Between Design Models and Source Code"

10.5281/zenodo.7194265

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Citations (0)

Using reactive links to propagate changes across engineering models

Software & Systems Modeling (2024)

Cosmina-Cristina Raţiu Wesley K. G. Assunção Edvin Herac Rainer Haas Christophe Lauwerys

TRACE (psycholinguistics)

Granularity

Traceability

10.1007/s10270-024-01186-w

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Citations (1)

Open-Source Software Product Line Extraction Processes: the ArgoUML-SPL and Phaser Cases

Zenodo (CERN European Organization for Nuclear Research) (2021)

Rodrigo Canto Moreira Wesley K. G. Assunção Jabier Martinez Eduardo Figueiredo

Collection of datasets and analysis scripts supporting the information provided in the text. There are two compressed files, one for the ArgoUML data and one for the Phaser data. Each compressed file contains a README describing important information.

Phaser

Product line

Software product line

10.5281/zenodo.5519965

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Citations (0)

Search Based Software Engineering: Review and analysis of the field in Brazil

Journal of Systems and Software (2012)

Thelma Elita Colanzi Sílvia Regina Vergílio Wesley K. G. Assunção Aurora Pozo

Search-based software engineering

Consolidation

10.1016/j.jss.2012.07.041

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Citations (34)

Architectural Feature Re-Modularization for Software Product Line Evolution

Luciane Baldo Nicolodi Thelma Elita Colanzi Wesley K. G. Assunção

Extensive maintenance leads to the Software Product Line Architecture (PLA) degradation over time. When there is the need of evolving the Software Product Line (SPL) to include new features, or move to a new platform, a degraded PLA requires considerable effort to understand and modify, demanding expensive refactoring activity. In the state of the art, search-based algorithms are used to improve PLA at package level. However, recent studies have shown that the most variability and implementation details of an SPL are described in the level of classes. There is a gap between existing approaches and existing practical needs. In this work, we extend the current state of the art to deal with feature modularization in the level of classes by introducing a new search operator and a set of objective functions to deal with feature modularization in a finer granularity of the architectural elements, namely at class level. We evaluated the proposal in an exploratory study with a PLA widely investigated and a real-world PLA. The results of quantitative and qualitative analysis point out that our proposal provides solutions to properly re-modularize features in a PLA, being preferred by practitioners, in order to support the evolution of SPLs.

Code refactoring

Modular programming

Software product line

Feature (linguistics)

Software Maintenance

Software evolution

Granularity

10.1145/3425269.3425271

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Citations (3)