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Articles 1 - 14 of 14
Full-Text Articles in Physical Sciences and Mathematics
Evaluation And Assessment Of Recommenders Using Monte Carlo Simulation, Renato Costa, Luiz Fernando Capretz
Evaluation And Assessment Of Recommenders Using Monte Carlo Simulation, Renato Costa, Luiz Fernando Capretz
Luiz Fernando Capretz
There have been various definitions, representations and derivations of trust in the context of recommender systems. This article presents a recommender predictive model based on collaborative filtering techniques that incorporate a fuzzy-driven quantifier, which includes two upmost relevant social phenomena parameters to address the vagueness inherent in the assessment of trust in social networks relationships. An experimental evaluation procedure utilizing a case study is conducted to analyze the overall predictive accuracy. These results show that the proposed methodology improves the performance of classical recommender approaches. Possible extensions are then outlined.
Maturity Assessment Framework For Business Dimension Of Software Product Family, Faheem Ahmed, Luiz Fernando Capretz
Maturity Assessment Framework For Business Dimension Of Software Product Family, Faheem Ahmed, Luiz Fernando Capretz
Luiz Fernando Capretz
The software product family approach aims at curtailing the concept of “reinventing the wheel” in the software development process. The business has been highlighted as one of the critical dimensions in the process of software product family. This work presents an assessment framework for evaluating the business dimension of software product family process. Additionally, a software product family business evaluation tool has been designed and implemented on the basis of the presented framework. The tool preprocesses the data of key business factors, and it evaluates the overall business maturity of an organization. To demonstrate the application of the framework, and …
A Conceptual Framework For Measuring The Quality Aspect Of Mobile Learning, Luiz Fernando Capretz, Abdalha Ali, Abdelkader Ouda
A Conceptual Framework For Measuring The Quality Aspect Of Mobile Learning, Luiz Fernando Capretz, Abdalha Ali, Abdelkader Ouda
Luiz Fernando Capretz
With the continuing growth of mobile phones outpacing that of desktops and laptops, mobile phones are the new personal computer. These devices started becoming increasingly sophisticated and extremely powerful. In addition to making phone calls it have the capabilities to perform variety functions, one of the most important functions using it as a classroom tool. However, mobile phone applications must be designed and developed with respect to different technologies skills, learning capabilities and language proficiency in order to be accepted by wide audiences (e.g., students, instructors). However, there is much work that has been done to measure the quality of …
Implications Of Mbti In Software Engineering Education, Luiz Fernando Capretz
Implications Of Mbti In Software Engineering Education, Luiz Fernando Capretz
Luiz Fernando Capretz
A number of approaches exist to aid the understanding of individual differences and their effects on teaching and learning. Educators have been using the Myers-Briggs Type Indicator (MBTI) to understand differences in learning styles and to develop teaching methods that cater for the various personality styles. Inspired by the MBTI, we developed a range of practices for effective teaching and learning in a software engineering course. Our aim is to reach every student, but in different ways, by devising various teaching approaches.
Component-Based Software Development, Luiz Fernando Capretz, Miriam Capretz, Dahai Li
Component-Based Software Development, Luiz Fernando Capretz, Miriam Capretz, Dahai Li
Luiz Fernando Capretz
Component-based software development (CBSD) strives to achieve a set of pre-built, standardized software components available to fit a specific architectural style for some application domain; the application is then assembled using these components. Component-based software reusability will be at the forefront of software development technology in the next few years. This paper describes a software life cycle that supports component-based development under an object-oriented framework. Development time versus software life cycle phases, which is an important assessment of the component-based development model put forward, is also mentioned.
Fuzzy-Excom Software Project Risk Assessment, Luiz Fernando Capretz, Ekananta Manalif, Ali Bou Nassif, Danny Ho
Fuzzy-Excom Software Project Risk Assessment, Luiz Fernando Capretz, Ekananta Manalif, Ali Bou Nassif, Danny Ho
Luiz Fernando Capretz
A software development project can be considered to be risky project due to the uncertainty of the information (customer requirements), the complexity of the process, and the intangible nature of the product. Under these conditions, risk management in software development projects is mandatory, but often it is difficult and expensive to implement. Expert COCOMO is an efficient approach to software project risk management, which leverages existing knowledge and expertise from previous effort estimation activities to assess the risk in a new software project. However, the original method has a limitation because it cannot effectively deal with imprecise and uncertain inputs …
Using Meta-Ethnography To Synthesize Research: A Worked Example Of The Relations Between Personality On Software Team Processes, Fabio Q. B. Silva Dr., Shirley S. J. O. Cruz, Tatiana B. Gouveia, Luiz Fernando Capretz
Using Meta-Ethnography To Synthesize Research: A Worked Example Of The Relations Between Personality On Software Team Processes, Fabio Q. B. Silva Dr., Shirley S. J. O. Cruz, Tatiana B. Gouveia, Luiz Fernando Capretz
Luiz Fernando Capretz
Context: The increase in the number of qualitative and mixed-methods research published in software engineering has created an opportunity for further knowledge generation through the synthesis of studies with similar aims. This is particularly true in the research on human aspects because the phenomena of interest are often better understood using qualitative research. However, the use of qualitative synthesis methods is not widespread and worked examples of their consistent application in software engineering are needed. Objective: To explore the use of meta-ethnography in the synthesis of empirical studies in software engineering through an example using studies about the relations between …
An Architecture Maturity Model Of Software Product Line, Faheem Ahmed, Luiz Fernando Capretz
An Architecture Maturity Model Of Software Product Line, Faheem Ahmed, Luiz Fernando Capretz
Luiz Fernando Capretz
Software architecture has been a key research area in the software engineering community due to its significant role in creating high-quality software. The trend of developing product lines rather than single products has made the software product line a viable option in the industry. Software product line architecture (SPLA) is regarded as one of the crucial components in the product lines, since all of the resulting products share this common architecture. The increased popularity of software product lines demands a process maturity evaluation methodology. Consequently,this paper presents an architecture process maturity model for software product line engineering to evaluate the …
Calibrating Function Point Backfiring Conversion Ratios Using Neuro-Fuzzy Technique, Justin Wong, Luiz Fernando Capretz, Danny Ho
Calibrating Function Point Backfiring Conversion Ratios Using Neuro-Fuzzy Technique, Justin Wong, Luiz Fernando Capretz, Danny Ho
Luiz Fernando Capretz
Software estimation is an important aspect in software development projects because poor estimations can lead to late delivery, cost overruns, and possibly project failure. Backfiring is a popular technique for sizing and predicting the volume of source code by converting the function point metric into source lines of code mathematically using conversion ratios. While this technique is popular and useful, there is a high margin of error in backfiring. This research introduces a new method to reduce that margin of error. Neural networks and fuzzy logic in software prediction models have been demonstrated in the past to have improved performance …
A Treeboost Model For Software Effort Estimation Based On Use Case Points, Luiz Capretz, Ali Nassif
A Treeboost Model For Software Effort Estimation Based On Use Case Points, Luiz Capretz, Ali Nassif
Luiz Fernando Capretz
Software effort prediction is an important task in the software development life cycle. Many models including regression models, machine learning models, algorithmic models, expert judgment and estimation by analogy have been widely used to estimate software effort and cost. In this work, a Treeboost (Stochastic Gradient Boosting) model is put forward to predict software effort based on the Use Case Point method. The inputs of the model include software size in use case points, productivity and complexity. A multiple linear regression model was created and the Treeboost model was evaluated against the multiple linear regression model, as well as the …
Cots-Based Software Product Line Development, Luiz Fernando Capretz, Faheem Ahmed, Shereef Al-Maati, Zaher Alaghbari
Cots-Based Software Product Line Development, Luiz Fernando Capretz, Faheem Ahmed, Shereef Al-Maati, Zaher Alaghbari
Luiz Fernando Capretz
Software Product Line (SPL) is at the forefront among the techniques for reducing costs, decreasing schedule time, and ensuring commonality of features across a family of products - as components off-the-shelf (COTS) are reused in multiple products. A disciplined process for software product line development is still needed. We propose the Y-model for COTS-based software product line development. The model put forward identifies and elaborates the essential phases and activities of software product line development from COTS-based repository. The Y-model provides an efficient way of integrating the approaches of software product line and COTS-based development as a cohesive software development …
An Organizational Maturity Model Of Software Product Line Engineering, Faheem Ahmed, Luiz Fernando Capretz
An Organizational Maturity Model Of Software Product Line Engineering, Faheem Ahmed, Luiz Fernando Capretz
Luiz Fernando Capretz
Software product line engineering is an inter-disciplinary concept. It spans the dimensions of business, architecture, process, and the organization. Some of the potential benefits of this approach include cost reduction, improvements in product quality and a decrease in product development time. The increasing popularity of software product line engineering in the software industry necessitates a process maturity evaluation methodology. Accordingly, this paper presents an organizational maturity model of software product line engineering for evaluating the maturity of organizational dimension. The model assumes that organizational theories, behavior, and management play a critical role in the institutionalization of software product line engineering …
Managing The Business Of Software Product Line: An Empirical Investigation Of Key Business Factors, Faheem Ahmed, Luiz Capretz
Managing The Business Of Software Product Line: An Empirical Investigation Of Key Business Factors, Faheem Ahmed, Luiz Capretz
Luiz Fernando Capretz
Business has been highlighted as a one of the critical dimensions of software product line engineering. This paper’s main contribution is to increase the understanding of the influence of key business factors by showing empirically that they play an imperative role in managing a successful software product line. A quantitative survey of software organizations currently involved in the business of developing software product lines over a wide range of operations, including consumer electronics, telecommunications, avionics, and information technology, was designed to test the conceptual model and hypotheses of the study. This is the first study to demonstrate the relationships between …
A New Calibration For Function Point Complexity Weights, Wei Xia, Luiz Fernando Capretz, Danny Ho, Faheem Ahmed
A New Calibration For Function Point Complexity Weights, Wei Xia, Luiz Fernando Capretz, Danny Ho, Faheem Ahmed
Luiz Fernando Capretz
Function Point (FP) is a useful software metric that was first proposed twenty-five years ago, since then, it has steadily evolved into a functional size metric consolidated in the well-accepted Standardized International Function Point Users Group (IFPUG) Counting Practices Manual - version 4.2. While software development industry has grown rapidly, the weight values assigned to count standard FP still remain same, which raise critical questions about the validity of the weight values. In this paper, we discuss the concepts of calibrating Function Point, whose aims are to estimate a more accurate software size that fits for specific software application, to …