Significant and urgent solutions are required in order to manage educational resource efficient and effective. Data replication is one of the key components to manage the huge of resources in data grid architecture as...
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Significant and urgent solutions are required in order to manage educational resource efficient and effective. Data replication is one of the key components to manage the huge of resources in data grid architecture as it enhances data access and reliability. Replication provides user with fast, local access to shared data, and increased availability of applications because alternate data access options exist. In this paper, we present on how to manage fragmented database replication and transaction for educational resources-Student Information System (SIS) by using Binary Vote Assignment on Grid Quorum (BVAGQ) fragmented database replication model. Furthermore, fragmentation in distributed database is very useful in terms of usage, reliability and efficiency. In particular, BVAGQ able to partition the database into disjoint fragments. The result shows that managing replication and transaction through proposed BVAGQ able to preserve data availability and consistency. It also increases the degrees of parallelism. This is because by using fragmentation, replication and transaction can be divided into several subqueries that operate on the fragments.
Impaired people require additional attention by the people around them and also by the people who design artifacts and tools for them. We investigate the interaction design aspects of a wheelchair controller, develope...
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Impaired people require additional attention by the people around them and also by the people who design artifacts and tools for them. We investigate the interaction design aspects of a wheelchair controller, developed by embedded software engineers in the laboratory, according to the rules of physicality. The purpose of the study is to facilitate impaired people with ease of use while bridging the gap between human-computer interaction and embedded softwareengineering. By proposing Nintendo's Wiimote as wheelchair controller, we intend to produce intuitive, simple and natural interaction with the wheelchair.
The analysis using Social Network Analysis (SNA) is focusing more on the number or the frequency of social interactions based on adjacency matrix. This method cannot be used to observe the semantic relationship among ...
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The analysis using Social Network Analysis (SNA) is focusing more on the number or the frequency of social interactions based on adjacency matrix. This method cannot be used to observe the semantic relationship among e-Learning components. Therefore, this paper aims to propose a new paradigm of Social Network Analysis (SNA) using ontology structure of Moodle e-Learning. By considering the relationship of ontology, we can understand the meaning of semantic relationship more deeply. The ontology of Moodle e-learning system for social network analysis will become great advantage to make measurement not only based on the matrix or number of interactions but also based on the semantic meaning of the relationships among users.
The ability to predict reliability of the software during its architectural design not only helps in saving cost but also helps to improve its reliability. With the growing size and complexity of software applications...
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The ability to predict reliability of the software during its architectural design not only helps in saving cost but also helps to improve its reliability. With the growing size and complexity of software applications researchers have focused that how to get software reliability through its architecture. Architectural design phase is the stage where one can evaluate either the developed software will fulfill the requirements or not; that's why a highly reliable method is required to analyze and predict the software's architectural reliability. Reliability prediction at architecture level is a challenging task because the architecture reliability depends on the reliability of the individual component, their size, complexity, implemented technology and the interaction among the components. In this paper we have compared the existing reliability prediction models based on our criteria. The purpose is to discover that which one is the best and what is the shortcoming of these models. We also have suggested the research activities needed to overcome these shortcomings.
Nowadays, the significant advancement of mobile technologies has led to the possibility of accessing web services in a pervasive way and semantic web service discovery approaches seem to be the most promising approach...
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Nowadays, the significant advancement of mobile technologies has led to the possibility of accessing web services in a pervasive way and semantic web service discovery approaches seem to be the most promising approach to perform semantic matching. The proliferation of web services with similar functionalities is increasing rapidly. Thus, differentiation of the characteristics of web service offered has become more crucial. Without considering non-functional properties (NFPs) such as user requirement and quality standard of web services, it may result to irrelevant services to the users' need in mobile computing. Mobile users may discover unusable web services invoked, due to the device compatibility issues and lack of quality standard information in service description. This paper proposes WSMO-M(Mobile), an enhancement of WSMO to describe NFPs as a context and Quality of Web Service (QoWS) information for mobile computing environment. Initially, for annotating web service description, the context and QoWS models are specified by using Web Service Modeling Ontology (WSMO). Semantic matchmaking and degree of match calculation are also presented to define the importance of non-functional properties in mobile computing during the discovery and selection of web services. Finally, this paper demonstrates the applicability of the enhancement through a simple case study.
Model-driven code generation is being increasingly applied to developing softwaresystems as a result of its recognition as an instrument to enhance the produced software. At the same time, aspect-oriented programming...
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Model-driven code generation is being increasingly applied to developing softwaresystems as a result of its recognition as an instrument to enhance the produced software. At the same time, aspect-oriented programming languages have come to the mainstream of software development due to their distinctive features to provide better modularization and separation of concerns. As a consequence of this prevalence and recognition of its impact on improving several software quality factors, different approaches have been proposed in literature to generate aspect-oriented model-driven code. This paper provides a comparative review of some existing approaches and discusses important issues and directions in this particular area. The results of this survey indicate aspect-oriented model-driven code generation being a rather immature area. Majority of approaches address structure diagrams only, a fact that limits them to partial code generation. There is a need for research that incorporates behavior diagrams, in order to achieve long term goal of full code generation from aspect-oriented models.
Embedded systems are proliferating in vast application areas of life with ever increasing multifarious functionalities. Due to the focus of research and development on growing software issues, the naturalness of physi...
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Embedded systems are proliferating in vast application areas of life with ever increasing multifarious functionalities. Due to the focus of research and development on growing software issues, the naturalness of physical interface remains neglected resulting in interaction complexities for the user. In this work we investigate the complexities of three embedded systems including; washing machine; camera; and MP3 player according to the principles of physicality. By assigning quantitative values to each physicality principle, it is evident from the analysis that inverse action and compliant interaction are two powerful principles that if applied properly augment the natural interaction with the device. As the ubiquitous computing is knocking at the market doors, it is significant enough for the embedded system developers to incorporate the natural interaction capabilities in every day embedded devices by studying, discovering, and reducing the complexities of physical user interfaces.
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