Search results for "software engineering"

An Exploratory Empirical Study of Internal Quality Attributes of Open Source Software Systems

2012

This exploratory empirical study has focused on open source software (OSS). Seven medium-sized OSS systems from the SourceForge repository were analysed. Over 100 internal quality attributes and programming practices were scrutinized by using two semi-automated source code analysis tools (FindBugs and SoftCalc). Many statistically significant relations were revealed by the conducted regression analyses. Seven so-called bad programming practices; as manifested by the measured source code inconsistencies were identified as having significant relations to internal software quality. Additionally we set and tested two hypotheses. That investigation provided mixed results partly supporting some o…

Supporting Impact Analysis by Program Dependence Graph Based Forward Slicing

2007

Since software must evolve to meet the typically changing requirements, source code modifications can not be avoided. Impact analysis is one of the central and relatively demanding tasks of software maintenance. It is constantly needed while aiming at ensuring the correctness of the made modifications. Due to its importance and challenging nature automated support techniques are required. Theoretically, forward slicing is a very suitable technique for that purpose. Therefore, we have implemented a program dependence graph (PDG) based tool, called GRACE, for it. For example, due to the typical rewritings of Visual Basic programs there is a great need to support their impact analysis. However…

Digging into group establishment: Intervention design and evaluation

2021

Previous research has documented challenges in students’ group work. An identifiable segment of the previous research that relates to improving students’ group work conditions is the study of group formation and self- and peer-assessment. Though studies that primarily focus on how to address the conditions of students’ group work and the existing problems can be found, there are not many related to higher education settings. On this ground, the present article advances a qualitative evaluation of the intervention that promotes student groups’ self-awareness and thereby self-regulation toward fair group work during a software engineering project. An inductive thematic analysis was applied to…

Ontological Analysis and Modularization of CIDOC-CRM

2020

Conference cancelled due to COVID19; International audience; The CIDOC-CRM ontology is a standard for cultural heritage data modeling. Despite its large exploitation, the ontology is primarily maintained in a semi-formal notation, which makes it difficult to homogeneously exploit it in digital environments. In addition, the ontology consists of several classes and relations, whereas one sometimes wishes to reuse it but only partially. The purpose of the paper is to contribute to the use of CIDOC by strengthening its foundations. On the basis of formal ontology theories, we propose a first analysis of the ontology to enhance its conceptual structure. We also present a preliminary modularizat…

CrowdVAS-Net: A Deep-CNN Based Framework to Detect Abnormal Crowd-Motion Behavior in Videos for Predicting Crowd Disaster

2019

With the increased occurrences of crowd disasters like human stampedes, crowd management and their safety during mass gathering events like concerts, congregation or political rally, etc., are vital tasks for the security personnel. In this paper, we propose a framework named as CrowdVAS-Net for crowd-motion analysis that considers velocity, acceleration and saliency features in the video frames of a moving crowd. CrowdVAS-Net relies on a deep convolutional neural network (DCNN) for extracting motion and appearance feature representations from the video frames that help us in classifying the crowd-motion behavior as abnormal or normal from a short video clip. These feature representations a…

Specifying Patterns for Mobile Application Domain Using General Architectural Components

2005

Software companies adopt patterns as a means to improve architecture and design practices. During recent years, the application of patterns has extended from general software applications to specific problem domains. In a new domain, suitable patterns fitting to the essential design problems in the new context need to be identified. In this paper, we introduce a general architectural model of mobile applications, which can be used to identify and organise essential patterns in mobile-application design process. This model is employed to construct a high-level architecture of a particular application. For each component of the architecture, the model may suggest candidate patterns that can b…

2019

Background Key elements of instructional quality include the teacher's ability to immediately react in domain-specific classroom situations. Such skills - defined as action-related skills - can only be validly assessed using authentic representations of real-life teaching practice. However, research has not yet explained how teachers apply domain-specific knowledge for teaching and to what extent action-related skills are transferable from one domain to another. Aims Our study aims to examine (1) the relationship between action-related skills, content knowledge, and pedagogical content knowledge, and (2) the domain specificity of action-related skills of (prospective) teachers in the two do…

On marrying ontological and metamodeling technical spaces

2007

In software engineering, the use of models and metamodeling approaches (e.g., MDA with MOF/UML) for purposes such as software design or software validation is an established practice. Ontologies constitute domain models formalized using expressive logic languages for class definitions and rules. Hence, when seen from an abstract point of view, the two paradigms and their various technological spaces seem closely related. However, in the state-of-the-art research and practice the two technologies are just beginning to converge and the relationship between the two is still under exploration. In this paper, we give an outline of current ontology technologies, such as the Semantic Web standards…

Robust Network Agreement on Logical Information

2011

Abstract Logical consensus is an approach to distributed decision making which is based on the availability of a network of agents with incomplete system knowledge. The method requires the construction of a Boolean map which defines a dynamic system allowing the entire network to consent on a unique, global decision. Previous work by the authors proved the method to be viable for applications such as intrusion detection within a structured environment, when the agent's communication topology is known in advance. The current work aims at providing a fully distributed protocol, requiring no a priori knowledge of each agent's communication neighbors. The protocol allows the construction of a r…

A coarse to fine 3D acquisition system

2015

International audience; The 3D chain (acquisition-processing-compression) is , most of the time , sequenced into several steps. Such approaches result into an one-dense acquisition of 3D points. In large scope of applications , the first processing step consists in simplifying the data. In this paper , we propose a coarse to fine acquisition system which permits to obtain simplified data directly from the acquisition. By calculating some complementary information from 2D images , such as 3D normals , multiple homogeneous regions will be segmented and affected to a given primitive class. Contrary to other studies , the whole process is not based on a mesh. The obtained model is simplified di…