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Software Product Line for Metaverse: Preliminary Results

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arXiv 2022年

作者： Fernandes, Filipe Werner, Cláudia System Engineering and Computer Science Department Universidade Federal do Rio de Janeiro COPPE UFRJ Rio de Janeiro Brazil

The Metaverse is a network of eXtended Reality applications (XR apps) connected to each other, over the Internet infrastructure, allowing network users, systems, and devices to access them. It is very challenging to implement solutions for XR apps, due to the combination of complex concerns that should be addressed: multiple users with non-traditional input and output devices, different hardware platforms that should be addressed, forceful interactive rates, and experimental interaction techniques, among other issues. Therefore, this work aims to present a Software Product Line (SPL)-based approach to support the development of Web XR apps. More specifically, we define a features model that represents similarities and variables (domain analysis);we defined a core composed of generic and reusable software artifacts (domain project);and we developed an interface to support the instantiation of a Web XR app family, named MetaSee Features Model Editor (domain implementation). This approach integrates with a component of the MetaSEE architecture (Metaverse for Software engineering Education). A preliminary assessment found that Features Model has conceptual consistency from the point of view of the complexity of Web XR Apps multimodal interaction. As future work, features model and artifacts will be increased with improvements and an evaluation with a significant number of participants will be made. © 2022, CC BY-NC-ND.

关键词： Application programs

Software Product Line for Metaverse: Preliminary Results

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Software Product Line for Metaverse: Preliminary Results

Symposia and Workshops on Ubiquitous, Autonomic and Trusted Computing, UIC-ATC

作者： Filipe Fernandes Cláudia Werner System Engineering and Computer Science Department Universidade Federal do Rio de Janeiro – COPPE/UFRJ Rio de Janeiro Brazil

The Metaverse is very challenging to implement solutions for eXtended Reality applications (XR apps), due to the combination of complex concerns that should be addressed: multiple users with non-traditional input and output devices, different hardware platforms that should be addressed, forceful interactive rates, and experimental interaction techniques, among other issues. Therefore, this work aims to present a Software Product Line (SPL)-based approach to support the development of Web XR apps. More specifically, we define a features model that represents similarities and variables (domain analysis); we defined a core composed of generic and reusable software artifacts (domain design); and we developed an interface to support the instantiation of a Web XR app family, named MetaSee Features Model Editor (domain implementation). This approach integrates with a component of the MetaSEE architecture (Metaverse for Software engineering Education). A preliminary assessment found that Features Model has conceptual consistency from the point of view of the complexity of Web XR Apps multimodal interaction. As future work, features model and artifacts will be increased with improvements and an evaluation with a significant number of participants will be performed.

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Towards a Blockchain-based Software engineering Education

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arXiv 2023年

作者： Fernandes, Filipe Werner, Cláudia Federal University of Rio de Janeiro – COPPE/UFRJ Systems Engineering and Computer Science Department Caixa Postal 68.511 RJ Rio de Janeiro21.941-972 Brazil Federal Institute of Southeast Minas Gerais – IF Sudeste MG Computer Science Department Caixa Postal 413 MG Manhuaçu36.909-300 Brazil

Blockchain technologies for rewards in education are gaining attraction as a promising approach to motivate student learning and promote academic achievement. By providing tangible rewards for educational attainment and engagement, such as digital tokens, educators can motivate learners to take a more active role in their learning and increase their sense of ownership and responsibility for their academic outcomes. In this context, this work proposes the Software engineering Skill (SES) token as a way of rewarding students in order to improve their experiences in Software engineering Education (SEE). We performed a proof of concept and conclude that SES token can be deployed in a platform to support SEE. © 2023, CC BY-NC-ND.

关键词： Blockchain

SCENARIOTCHECK: A checklist-based reading technique for the verification of IoT scenarios

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arXiv 2021年

作者： De Souza, Bruno Pedraça Travassos, Guilherme Horta Department of Systems Engineering and Computer Science Federal University of Rio de Janeiro COPPE/UFRJ Rio de Janeiro RJ Brazil

Software systems on the Internet of Things have driven the world into a new industrial revolution, bringing with it new features and concerns such as autonomy, continuous device connectivity, and interaction among systems, users, and things. Nevertheless, building these types of systems is still a problematic activity due to their specific features. Empirical studies show the lack of technologies to support the construction of IoT software systems, in which different software artifacts should be created to ensure their quality. Thus, software inspection has emerged as an alternative evidence-based method to support the quality assurance of artifacts produced during the software development cycle. However, there is no knowledge of inspection techniques applicable to IoT software systems. Therefore, this research presents SCENARIOTCHECK, a Checklist-based Reading Technique for the Verification of IoT Scenarios. The checklist has been evaluated with experimental studies. This research shows that the technique has good results regarding cost-efficiency, efficiency, and IoT software system development effectiveness. © 2021, CC BY.

关键词： Internet of things

Alternatives for testing of context-aware contemporary software systems in industrial settings: Results from a rapid review

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arXiv 2021年

作者： Matalonga, Santiago Amalfitano, Domenico Doreste, Andrea Fasolino, Anna Rita Travassos, Guilherme H. School of Computing Engineering and Physical Science ALMADA Research Centre University of the West of Scotland Paisley Renfrewshire United Kingdom Department of Electrical Engineering and Information Technology DIETI University of Naples Federico II Naples Italy System Engineering and Computer Science COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil

Context: Context-aware contemporary software systems (CACSS) are mainstream. Furthermore, they present challenges for current engineering practices. These challenges are distinctively present when testing CACSS, as the variation of context deepens the limitations of available software testing practices and technologies. Objective: To understand how the industry deals with the variation of context when testing CACSS. Method: A Rapid Review was commissioned to uncover the necessary evidence to achieve the objectives. Results: Our results show that current research initiatives aim to generate or improve Test Suites that can deal with the variation of context and the sheer volume of test input possibilities. To achieve this, they mostly rely on modeling the systems' dynamic behavior and increasing computing resources to generate test inputs. We found no evidence of research results aiming at managing context variation through the testing lifecycle process. Conclusions: We discuss how the identified solutions are not ready for mainstream adoption. They are all domain-specific, and while the ideas and approaches can be reproduced in different settings, the technologies noon to be re-engineered and tailor to the specific CACSS. © 2021, CC BY-NC-SA.

关键词： Software testing

Towards using task similarity to recommend Stack Overflow posts 21

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Towards using task similarity to recommend Stack Overflow po...

21st Ibero-American Conference on Software engineering, CIbSE 2018

作者： Melo, Gláucia Telemaco, Ulisses Oliveira, Toacy Alencar, Paulo Cowan, Don COPPE – Systems Engineering and Computer Science Department UFRJ – Federal University of Rio de Janeiro Rio de Janeiro – RJ Brazil David R. Cheriton School of Computer Science University of Waterloo WaterlooON Canada

ISBN: (纸本)9789584837547

Software development depends on diverse technologies and methods and as a result, software development teams often handle issues in which team members are not experts. In order to address this lack of expertise, developers typically search for information on web-based Q&A sites such as Stack Overflow, a well-known place to find solutions to specific technology-related problems. The access to these web-based Q&A locations is currently not integrated into the software development environment, and because the associations between software development processes and the supporting sources of known solutions, usually referred to as knowledge, is not explicitly modeled and recorded, software developers often need to search for solutions to similar recurring issues multiple times. Moreover, this lack of integration hampers the implementation of a proactive recommender system that can point developers to knowledge that is relevant to their development processes. This research aims at proposing a solution that explicitly associates process elements (such as project tasks) to Stack Overflow posts and presents a recommender system that proactively recommends Stack Overflow posts to developers based on the similarity of project tasks. A literature review was used to find the concepts to define a meta-model for project tasks. This research paper advances the area of software development knowledge reuse by reporting on both the model and the results of experiments performed with real project development data. © 2018 Conferencia Iberoamericana de Software engineering - CIbSE. All Rights Reserved.

关键词： Recommender systems

Software Process Definition using Process Lines: A systematic Literature Review

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Software Process Definition using Process Lines: A Systemati...

Conferencia Latinoamericana En Informatica (CLEI)

作者： Diogo Matheus Costa Eldânae Nogueira Teixeira Claudia Maria Lima Werner Systems Engineering and Computer Science Department PESC/COPPE/UFRJ Rio de Janeiro Brazil

ISBN: (纸本)9781728104386

Software processes have been the focus of discussion in literature, but defining a software process remains a challenge. The Software Process Line (SPrL) technique offers a systematic process reuse approach that identifies processes' similarities and variability. This study aims to characterize the state-of-the-art of the software process definition using SPrL. A systematic Literature Review (SLR) was conducted and 26 papers were identified to be studied in depth. The results indicate a concentration of approaches that use mapping/rules techniques to support variability resolution and the need for integrated supporting tools. In addition, three problems that affect the software process definition using SPrL were observed: (1) low understanding of SPrL models complexity and their impact, (2) lack of understanding about the impacts of the defined software process, and (3) experts' knowledge dependence issues in decision-making to solve variability.

关键词： Software Bibliographies Tools systematics Industries Process control systems engineering and theory

Corrigendum: A review of trends and drivers of greenhouse gas emissions by sector from 1990 to 2018 (2021 Environ. Res. Lett. 16 073005)

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Environmental Research Letters 2022年第4期17卷 049502-049502页

作者： William F Lamb Thomas Wiedmann Julia Pongratz Robbie Andrew Monica Crippa Jos G J Olivier Dominik Wiedenhofer Giulio Mattioli Alaa Al Khourdajie Jo House Shonali Pachauri Maria Figueroa Yamina Saheb Raphael Slade Klaus Hubacek Laixiang Sun Suzana Kahn Ribeiro Smail Khennas Stephane de la Rue du Can Lazarus Chapungu Steven J Davis Igor Bashmakov Hancheng Dai Shobhakar Dhakal Xianchun Tan Yong Geng Baihe Gu Jan Minx Mercator Research Institute on Global Commons and Climate Change Torgauer Straße 12–15 4 EUREF Campus #19 10829 Berlin Germany School of Earth and Environment University of Leeds LS2 9JT Leeds United Kingdom Sustainability Assessment Program School of Civil and Environmental Engineering UNSW Sydney Sydney Australia Max Planck Institute for Meteorology Bundesstrasse 53 20146 Hamburg Germany Department of Geography Ludwig-Maximilians-Universität Munich Luisenstrasse 37 80333 Munich Germany CICERO Center for International Climate Research Oslo Norway European Commission Joint Research Centre Ispra VA Italy PBL Netherlands Environmental Assessment Agency Den Haag The Netherlands Institute of Social Ecology University of Natural Resources and Life Sciences Schottenfeldgasse 29 1070 Vienna Austria Department of Transport Planning TU Dortmund University August-Schmidt-Straße 10 44227 Dortmund Germany Centre for Environmental Policy Imperial College London London United Kingdom School of Geographical Sciences University of Bristol University Road BS8 1SS Bristol United Kingdom International Institute for Applied Systems Analysis (IIASA) Schlossplatz 1 2361 Laxenburg Austria Department of Management Society and Communication Copenhagen Business School Copenhagen Denmark Openexp 17 Bd Lefebvre 75015 Paris France Integrated Research for Energy Environment and Society University of Groningen 9747AG Groningen The Netherlands Department of Geographical Sciences University of Maryland College Park MD 20742 United States of America School of Finance and Management SOAS University of London WC1H 0XG London United Kingdom Institute of Blue and Green Development Weihai Institute of Interdisciplinary Research Shandong University Weihai 264209 People’s Republic of China Federal University of Rio de Janeiro (Universidade Federal do Rio de Janeiro—UFRJ) Transport Engineering Programme (Programa de Engenharia de Transportes—PET) COPPE-UFRJ Rio de Janeiro Brazil Energy

The importance of socio-technical resources for software ecosystems management

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Journal of Innovation in Digital Ecosystems 2016年第2期3卷 98-113页

作者： Thaiana Lima Rodrigo Pereira dos Santos Jonice Oliveira Cláudia Werner System Engineering and Computer Science Department PESC/COPPE/UFRJ–Federal University of Rio de Janeiro Zip Code 21945-970–Rio de Janeiro Brazil

Software Ecosystem (SECO) is often understood as a set of actors interacting among themselves and manipulating artifacts with the support of a common technology platform. Usually, SECO approaches can be designed as an environment whose component repository is gathering stakeholders as well as software products and components. By manipulating software artifacts, a technical network emerges from interactions made over the component repository in order to reuse artifacts, improving code quality, downloading, selling, buying etc. Although technical repositories are essential to store SECO’s artifacts, the interaction among actors in an emerging social network is a key factor to strengthen the SECO’s through increasing actor’s participation, e.g., developing new software, reporting bugs, and communicating with suppliers. In the SECO context, both the internal and external actors keep the platform’s components updated and documented, and even support requirements and suggestions for new releases and bug fixes. However, those repositories often lack resources to support actors’ relationships and consequently to improve the reuse processes by stimulating actors’ interactions, information exchange and better understanding on how artifacts are manipulated by actors. In this paper, we focused on investigating SECO as component repositories that include socio-technical resources. As such, we present a survey that allowed us to identify the relevance of each resource for a SECO based on component repositories, initially focused on the Brazilian scenario. This paper also describes the analysis of the data collected in that survey. Information of other SECO elements extracted from the data is also presented, e.g., the participants’ profile and how they behave within a SECO. As an evolution of our research, a study for evaluating the availability and the use of such resources on top of two platforms was also conducted with experts in collaborative development in order to analyze th

关键词： Software ecosystems Socio-technical resources Component repositories Software reuse