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The provisioning and exploitation at a global scale of environmental and geophysical data requires advanced automation and governance mechanisms that enable (meta)data interoperability but also the exchange of formalized scientific concepts and methods. In this paper we introduce recent efforts in such direction, based on scientific workflows and research objects as enablers of such vision. The former...
After changes are made to a system, developers typically perform regression testing to uncover the regression faults in previously existing functionality of the system. However, during software evolution, the program entities (i.e., classes/methods) realizing such functionality might be modified/replaced by other entities. Thus, in the new version, existing test cases containing obsolete class references...
In this paper, we present a study exploring the use of API keywords within method summaries. We conducted a web-based study where we asked participants to rank Java method summaries based on five levels of detail, from low level to high level. We found that programmers widely use API in both high and low level summaries. Specifically, we found that 76.78% of higher level summaries contain Java API...
Traceability Link Recovery (TLR) is a fundamental software maintenance task in which links are established between related software artifacts of different types (e.g., source code, documentation, requirements specifications, etc.) within a system. Existing approaches to TLR often require a human to analyze a long list of potential links and distinguish valid links from invalid ones. Here we present...
Testing of product is perform to discover or detect the errors and defects in the developed system. But testing is usually time consuming especially when complex projects are canvass. Testing of a product lead off with generation of test cases. The Test case generation are based on three parts coding, design and specification. The Specification based testing deals with generation of test cases from...
To facilitate research into trace link evolution we present 27 versions of Cassandra source code, feature descriptions for each version, deltas between versions, structured descriptions of each version, and trace links between a subset of 48 features and source code for the starting and ending versions.
Requirements are usually categorized in functional requirements (FRs) and quality requirements (QR). FRs describe "things the product must do" while QRs describe "qualities the product must have". Besides the definition, classification, and representation problems identified by Glinz, there are two further problems with current definitions of quality requirements: (i) the definitions...
Behaviour-Driven Development (BDD) is an "outside-in" approach to software development built upon semi-formal mediums for specifying the behaviour of a system as it would be observed externally. Through the representation of a system as a collection of user stories and scenarios using BDD's notation, practitioners automate acceptance tests using examples of desired behaviour for the envisioned...
Prioritization, selection and minimization of test cases are well-known problems in software testing. Test case prioritization deals with the problem of ordering an existing set of test cases, typically with respect to the estimated likelihood of detecting faults. Test case selection addresses the problem of selecting a subset of an existing set of test cases, typically by discarding test cases that...
Many kinds of open source software (OSS) are used to develop software or systems. In order to develop software using existing forms of OSS, developers have to understand them. However some OSS lacks adequate documentation for its source code. Program diagrams, many of which have been recently proposed, can enhance the understanding of software or systems but developers cannot properly understand these...
[Background] Requirements Engineering is crucial for project success, and to this end, many measures for quality assurance of the software requirements specification (SRS) have been proposed. [Goal] However, we still need an empirical understanding on the extent to which SRS are created and used in practice, as well as the degree to which the quality of an SRS matters to subsequent development activities...
The reproducibility of an in-silico experiment is a great challenge because of the parallel and distributed environment and the complexity of the scientific workflows. In order to solve such problems on one hand provenance data has to be captured about the dataflow, the ancestry of the results and the environment of the execution, on the other hand description data has to be collected from the scientist...
This study aims at identifying tasks that can effectively promote novices' program comprehension. Based on literature of program comprehension and computer science education, we identified 14 tasks and classified them into homogeneous categories based on the Revised Bloom Taxonomy. We conducted a survey to rank these tasks within each Bloom category based on their potential effectiveness in developing...
Program comprehension is difficult to novices. Tasks have substantial effect on program comprehension. This work is part of larger study aims at identifying tasks that can improve novices' program comprehension. In one of our previous studies, fourteen tasks were identified to be feasibly effective in improving novices' program comprehension. These tasks were also classified into cognitive categories...
Architecture description can be modeled as a set of alternative choices and decisions, where the rationale and tradeoffs for each decision are documented and understood as needed to inform subsequent decisions. Each decision, based on ISO/IEC/IEEE 42010, pertains to one or more stakeholder concerns. These concerns combined with the system environment and scenarios provide architecture design context...
With CPU clock speeds stagnating over the last few years, ongoing advances in computing power and capabilities are being supported through increasing multi- and many-core parallelism. The resulting cost of locally maintaining large-scale computing infrastructure, combined with the need to perform increasingly large simulations, is leading to the wider use of alternative models of accessing infrastructure,...
In previous work we showed in a systematic mapping study that there is no method to enhance user-developer communication (UDC) in the design and implementation phase of large-scale IT projects (LSI). We then defined the UDC-LSI method. It is substantial especially for newly designed methods to evaluate them within a real-world context. As it is difficult to find a company willing to apply an untested...
Software reuse is one of the major goals in software engineering. Frameworks promote the reuse of not only individual building blocks, but also of system design. However, framework instantiation requires a substantial understanding effort. High quality documentation is essential to minimize this effort. However, in most cases, appropriate documentation does not exist or is not updated. Our hypothesis...
For this project the Post-Commissioning process was implemented in the air conditioning equipment located at the Clínica Universitaria Bolivariana (CUB) of the Universidad Pontificia Bolivariana, Medellín, Colombia. The equipment available in the institution, must comply with all the stipulations of the American Society of Engineering, Heating, Refrigerating and Air Conditioning (ASHRAE) for these...
The rise of social networks for software development has attached a notion of popularity to open source projects. This work attempts to extract knowledge from the differences between popular and unpopular Python projects on GitHub. A large set of projects was mined for a rich variety of features that measure language utilization, documentation, and code volume. These features were used to train a...
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