Browsing by Author "Condori Fernandez, Nelly"

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Analyzing emotions in conceptual models verification tasks performed in online contests
(Institute of Electrical and Electronics Engineers Inc., 2021) Mayhua Quispe, Angela; Suni Lopez, Franci; Condori Fernandez, Nelly; Granda Juca, María Fernanda
Emotion research in the area of software engineering has gained significant attention. Mostly this research has been focused on understanding the role of emotions in software programming carried out within collaborative software development environments. With the purpose of providing more evidence on emotion research in the early stages of the software life cycle, in this paper, we report the results of a live study conducted in competitive conditions. The main objective of the study is to analyze the emotions expressed by competitors when performing verification tasks with the support of CoSTest, a model-driven testing tool. Our results show that participants tend to experience more positive emotions (e.g., attentive, alert, active) than negative emotions (upset, hostile, afraid) when verification tasks are performed in an online contest.
CoSTest: a tool for validation of requirements at model level
(Institute of Electrical and Electronics Engineers, 2017) Granda Juca, María Fernanda; Condori Fernandez, Nelly; Pastor López, Oscar; Vos, Tanja Ernestina; Granda Juca, María Fernanda
We present CoSTest, a tool that supports the validation of Conceptual Schemas by using testing. The tool implements techniques for transforming instantiations from a Requirements Model into test case implementations by supporting a Model-driven architecture.
Mutation operators for UML class diagrams
(Springer, Cham, 2016) Granda Juca, María Fernanda; Condori Fernandez, Nelly; Vos, Tanja Ernestina; Pastor López, Oscar; Granda Juca, María Fernanda
Mutation Testing is a well-established technique for assessing the quality of test cases by checking how well they detect faults injected into a software artefact (mutant). Using this technique, the most critical activity is the adequate design of mutation operators so that they reflect typical defects of the artefact under test. This paper presents the design of a set of mutation operators for Conceptual Schemas (CS) based on UML Class Diagrams (CD). In this paper, the operators are defined in accordance with an existing defects classification for UML CS and relevant elements identified from the UML-CD meta-model. The operators are subsequently used to generate first order mutants for a CS under test. Finally, in order to analyse the usefulness of the mutation operators, we measure some basic characteristics of mutation operators with three different CSs under test.
What do we know about the defect types detected in conceptual models?
(Institute of Electrical and Electronics Engineers, 2015) Granda Juca, María Fernanda; Condori Fernandez, Nelly; Vos, Tanja Ernestina; Pastor López, Oscar; Granda Juca, María Fernanda
In Model-Driven Development (MDD), defects are managed at the level of conceptual models because the other artefacts are generated from them, such as more refined models, test cases and code. Although some studies have reported on defect types at model level, there still does not exist a clear and complete overview of the defect types that occur at the abstraction level. This paper presents a systematic mapping study to identify the model defect types reported in the literature and determine how they have been detected. Among the 282 articles published in software engineering area, 28 articles were selected for analysis. A total of 226 defects were identified, classified and their results analysed. For this, an appropriate defect classification scheme was built based on appropriate dimensions for models in an MDD context.