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Supporting the selection of model-based testing approaches for software projects

Supporting the selection of model-based testing approaches f...

引用

3rd International Workshop on Automation of Software Test, AST 2008, held in Conjunction with the 30th International Conference on Software engineering, ICSE 2008

作者： Dias Neto, Arilo Claudio Travassos, Guilherme Horta Federal University of Rio de Janeiro Systems Engineering and Computer Science Program - COPPE/UFRJ P.O. Box 68511 21941-972 Rio de Janeiro RJ Brazil

ISBN: (纸本)9781605580302

Software technologies, such as model-based testing approaches, have specific characteristics and limitations that can affect their use in software projects. To make available knowledge regarding such technologies is important to support the decision regarding their use in software projects. In particular, a choice of model-based testing approach can influence testing success or failure. Therefore, this paper aims at describing knowledge acquired from a systematic review regarding model-based testing approaches and proposing an infrastructure towards supporting their selection for software projects. Copyright 2008 ACM.

关键词： Software testing

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Mediating process adaptation through a goal-oriented context-aware approach

Mediating process adaptation through a goal-oriented context...

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2012 IEEE 16th International Conference on computer Supported Cooperative Work in Design, CSCWD 2012

作者： Nunes, Vanessa Tavares Werner, Cláudia M. Lima Santoro, Flávia Maria COPPE/PESC - Systems Engineering and Computer Science Program UFRJ PO Box 68511 21945-970 Rio de Janeiro Brazil NP2Tec and Postgraduate Information Systems Program UNIRIO Rio de Janeiro Brazil

ISBN: (纸本)9781467312127

Complexity and dynamism of day-to-day activities in organizations are inextricably linked, one impacting the other, increasing the challenges for constant adaptation on the way to organize work to address emerging demands. Market is demanding systems that are aware of organizations processes and able to evolve and adapt to new situations in everyday working activities. We argue that flexibility in processes could be managed in real time, by PAIS (Process-aware Information systems), using context information collected in the work environment. This paper proposes CGAdapt, a context management architecture approach that aims to improve and automate dynamic process adaptation. We explain how process adaptation may occur in real time through an existent scenario using this proposal and discuss the value of context-awareness to reason about process alternative adaptations in a goal oriented approach. © 2012 IEEE.

关键词： Real time systems

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A roadmap to the Collaboration Maturity Model (CollabMM) evolution

A roadmap to the Collaboration Maturity Model (CollabMM) evo...

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International Conference on computer Supported Cooperative Work in Design

作者： Magdaleno, Andréa Magalhães Araujo, Renata Mendes De Werner, Cláudia Maria Lima System Engineering and Computer Science Program - COPPE/UFRJ Rio de Janeiro RJ Brazil PPGI - Graduate Program in Informatics - UNIRIO Rio de Janeiro RJ Brazil

ISBN: (纸本)9781457703874

Organizations have been relying on collaboration for productivity improvement and knowledge sharing. The first step to foster collaboration in organizations is to make it explicit. With this aim, the Collaboration Maturity Model (CollabMM) was proposed and evaluated. The lessons learned during model applications in previous work pointed out the need to review both the model and its evaluation instruments. A literature review also showed some improvement opportunities. Therefore, the objective of this work is to develop a roadmap to highlight the main opportunities of evolution in CollabMM. These opportunities will compose our research agenda in this topic and guide future work. © 2011 IEEE.

关键词： Productivity

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Awareness and comprehension in software/systems engineering practice and education: Trends and research directions

Awareness and comprehension in software/systems engineering ...

引用

26th Brazilian Symposium on Software engineering, SBES 2012

作者： Schots, Marcelo Werner, Cláudia Mendonça, Manoel Systems Engineering and Computing Program COPPE/UFRJ Federal University of Rio de Janeiro Rio de Janeiro Brazil Computer Science Department Federal University of Bahia Rio de Janeiro Brazil

ISBN: (纸本)9780769548685

The creation of tools, techniques and methodologies to support the manipulation of large data sets has been receiving special attention of both scientific and industrial communities, in order to discover new ways of dealing with the underlying information, including learning purposes, identification of patterns, decision making support, amongst others. However, making use of computing resources to enhance awareness and understanding of software information and the software itself is still a challenge in software/systems engineering, since it involves the identification of suitable mechanisms, adequate abstractions, and studies on stimulation of the human perceptive and cognitive abilities. This paper presents some of the challenges in this context, based on current trends of software development lifecycle, program comprehension, and software engineering education. At the end, a special focus is given on ongoing research on using and improving current mechanisms for supporting software reuse practices and software comprehension in general. © 2012 IEEE.

关键词： computer software reusability

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Understanding the performance of DSM applications 1st

引用

1st Workshop on Communication and Architectural Support for Network-based Parallel Computing, CANPC 1997

作者： Meira, Wagner Leblanc, Thomas J. Hardavellas, Nikolaos Amorim, Clgudio Department of Computer Science University of Rochester RochesterNY14627 United States COPPE Systems Engineering UFRJ Rio de Janeiro21945-970 Brazil

ISBN: (纸本)3540625739

Carnival is a performance measurement and analysis tool that assists users in understanding the performance of DSM applications and protocols. Using traces of program executions, Carnival presents performance data as a hierarchy of execution profiles. During analysis, Carnival automates the inference process that relates performance phenomena to specific causes in the source code or DSM protocol using techniques that focus on the two most important sources of overhead in DSM systems: waiting time analysis identifies the causes of synchronization overhead, and produces an explanation for each source of waiting time in the program;communication analysis identifies the sequence of requests that result in invalidations, and produces an explanation for each source of communication. We describe these techniques and their implementation in TreadMarks, and show how to use waiting time analysis and communication analysis to improve the running time of two programs froIn the SPLASH application snite when executed on DEC Alphas connected by a DEC Memory Channel network. © Springer-Verlag Berlin Heidelberg 1997.

关键词： Application programs

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A computational framework for supporting software inspections 04

A computational framework for supporting software inspection...

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IEEE International Conference on Automated Software engineering (ASE)

作者： M. Kalinowski G.H. Travassos Systems Engineering and Computer Science COPPE/UFRJ Brazil

ISBN: (纸本)9780769521312

Software inspections improve software quality by the analysis of software artifacts, detecting their defects for removal before these artifacts are delivered to the following software life cycle activities. Some knowledge regarding software inspections have been acquired by empirical studies. However, we found no indication that computational support for the whole software inspection process using appropriately such knowledge is available. This paper describes a computational framework whose requirements set was derived from knowledge acquired by empirical studies to support software inspections. To evaluate the feasibility of such framework, two studies have been accomplished: one case study, which has shown the feasibility of using the framework to support inspections, and an experimental study that evaluated the supported software inspection planning activity. Preliminary results of this experimental study suggested that unexperienced subjects are able to plan inspections with higher defect detection effectiveness, and in less time, when using this computational framework.

关键词： Inspection Software quality Proposals systems engineering and theory computer science Costs Decision making Software performance Processor scheduling Guidelines

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Elastic neural net algorithm for cluster analysis

Elastic neural net algorithm for cluster analysis

引用

Brazilian Symposium on Neural Networks

作者： R.L. Salvini L.A. V. de Carvalho Program of Systems Engineering and Computer Science COPPE/UFRJ Rio de Janeiro Brazil

Proposes a method for data clustering in a n-dimensional space using the elastic net algorithm which is a variant of the Kohonen topographic map learning algorithm. The elastic net algorithm is a mechanical metaphor in which an elastic ring is attracted by points in a bi-dimensional space while their internal elastic forces try to shun the elastic expansion. The different weights associated with these two kinds of forces lead the elastic to a gradual expansion in the direction of the bi-dimensional points. In this method, the elastic net algorithm is employed with the help of a heuristic framework that improves its performance for application in the n-dimensional space of cluster analysis. Tests were made with two types of data sets: (1) simulated data sets with up to 1000 points randomly generated in groups linearly separable with up to dimension 10 and (2) the Fisher Iris Plant database, a well-known database referred to in the pattern recognition literature. The advantages of the method presented are its simplicity, its fast and stable convergence, beyond efficiency in cluster analysis.

关键词： Neural networks Clustering algorithms Algorithm design and analysis Databases Performance analysis Testing Test pattern generators Iris Pattern recognition Convergence

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The influence of human capabilities in effort estimation of business processes modeling projects

The influence of human capabilities in effort estimation of ...

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5th International Conference on Research and Practical Issues of Enterprise Information systems, CONFENIS 2011

作者： Dutra, José Roberto De Barros, Márcio O. Santoro, Flávia Maria Magdaleno, Andréa M. Cappelli, Claudia Nunes, Vanessa Klussman, Felipe Postgraduate Information Systems Program UNIRIO Brazil NP2Tec Research and Practice Group in Information Technology UNIRIO Rio de Janeiro RJ Brazil COPPE UFRJ Systems Engineering and Computer Science Program Rio de Janeiro RJ Brazil

ISBN: (纸本)9780415631310

Business processes modeling projects are increasingly widespread in organizations, which usually invest much in hiring expert consultants to do such job. These consultants come from various organizations, and have different experiences on how to perform the same activity. This paper analyzes how human-related capabilities influence the effort required to conduct a business process modeling project and discusses the results obtained from about 50 projects executed in a large Brazilian company. © 2012 Taylor & Francis Group, London.

关键词： systems engineering

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Who is right? Evaluating empirical contradictions in the readability & comprehensibility of source code 20

Who is right? Evaluating empirical contradictions in the rea...

引用

20th Ibero-American Conference on Software engineering, CIbSE 2017

作者： Ribeiro, Talita Vieira Travassos, Guilherme Horta PESC/COPPE/UFRJ - Systems Engineering and Computer Science Program Centro de Tecnologia Federal University of Rio de Janeiro Cidade Universitária Bloco H Sala 319 Rio de Janeiro RJ Brazil

ISBN: (纸本)9789873806988

Context: Several code guidelines aim at providing a common perspective on the readability and comprehensibility of source code. However, in many cases, they are contradictory on how to improve these quality characteristics. Objective: To analyze the influence of three contradictory source code attributes - indentation spacing, identifier length and code size - on the source code reada-bility and comprehensibility, interpreting whether programming experience and domain knowledge can support explaining these contradictions. Method: To per-form an empirical study with software developers collecting quantitative (Likert scale) and qualitative data to assess the readability and comprehensibility of de-velopers regarding Python snippets. To observe eventual perceptions contradic-tions and whether their levels of experience and knowledge have something to do with such contrary results. Results: Regardless their programming experience, 4-spaces indentation dominated the readability preference of participants. While the readability and comprehensibility preferences towards long and complete-word identifiers were mostly true for both novice/experts, developers with more experience and low domain knowledge level seemed to be more affected by the length of identifiers. Furthermore, while all participants showed more positive comprehensibility perceptions for Pythin snippets with more lines of code, their readability perceptions regardnig code size were contradictory since the less experienced participants preferred more lines of code and the more experienced ones prefer fewer lines. Conclusion: The results presented in the technical literature seemed to be caused by the interchangeable use of the readability and comprehensibility concepts. Further investigation is still needed to observe whether other confounding factors might support the explanation of such contrary results.

关键词： Codes (symbols)

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Advances in Artificial Intelligence - SBIA 2008 1

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丛书名： Lecture Notes in computer science

1000年

作者： Gerson Zaverucha Augusto Loureiro Costa

ISBN: (数字)9783540881902

ISBN: (纸本)9783540881896

This book constitutes the refereed proceedings of the 19th Brazilian Symposium on Artificial Intelligence, SBIA 2008, held in Salvador, Brazil, in October 2008. The 27 revised full papers presented together with 3 invited lectures and 3 tutorials were carefully reviewed and selected from 142 submissions. The papers are organized in topical sections on computer vision and pattern recognition, distributed AI: autonomous agents, multi-agent systems and game knowledge representation and reasoning, machine learning and data mining, natural language processing, and robotics.

关键词： programming Techniques programming Languages, Compilers, Interpreters Data Mining and Knowledge Discovery Artificial Intelligence Mathematical Logic and Formal Languages Computation by Abstract Devices

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