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A 2D/3D hybrid geographical information system 05

A 2D/3D hybrid geographical information system

GRAPHITE 2005 - 3rd International Conference on computer Graphics and Interactive Techniques in Australasia and Southeast Asia

作者： Brooks, Stephen Whalley, Jacqueline L. Faculty of Computer Science Dalhousie University Halifax NS Canada Department of Computer and Information Sciences Software Engineering Research Laboratory Auckland University of Technology New Zealand

ISBN: (纸本)1595932267

We present a unique Geographical Information System (GIS) that seamlessly integrates 2D and 3D views of the same spatial and aspatial data. Multiple layers of information are continuously transformed between the 2D and 3D modes under the control of the user, directly over a base-terrain. Although 2D/3D hybrid (or combination) displays are now widely used in medical applications such as tomography, they have not been explored to any great extent in GIS applications. And although many existing commercial 3D GIS systems have 2D views they are typically isolated from the 3D view in that they are presented in a separate window. In this paper we introduce a 2D/3D hybrid GIS that allows the user to view the 2D data in direct relation to the 3D view within the same view. Copyright © 2005 by the Association for Computing Machinery, Inc.

关键词： Geographic information systems

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The analysis and design strategy in the deployment of wireless communications for innovative campus networks

The analysis and design strategy in the deployment of wirele...

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作者： Sallim, Jamaludin Faculty of Computer Systems and Software Engineering University College of Engineering and Technology Malaysia Locked Bag 12 25000 Kuantan Pahang Malaysia

ISBN: (纸本)972886521X

This paper describes the fundamental concept of analysis and design strategy for an effective deployment of wireless communications for innovative universities or colleges campus that insistently deploys the wireless networks. The extensive use of wireless technologies in university campus has made various respective computer applications such as electronic transactions and electronic learning (e-learning) environments become more energetic. Usually, for the innovative campus network, when deploying wireless communications, most IT Managers/Engineers begin the project by jumping into technical matters, such as deciding upon which approach, technique or standard to use, which vendor to select, and how to overcome the various limitations. These are important elements of implementing wireless communications for innovative campus;however prior to getting too far with the project, the respective IT Managers/Engineers must give vigilant attention to analysis and design strategy in order to wind up with an effective deployment.

关键词： Managers

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Contract-based mutation for testing components

Contract-based mutation for testing components

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21st IEEE International Conference on software Maintenance, ICSM 2005

作者： Jiang, Ying Hou, Shan-Shan Shan, Jin-Hui Zhang, Lu Xie, Bing Institute of Software School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming 650093 China

ISBN: (纸本)0769523684

Testing plays an important role in the maintenance of Component Based software Development. Test adequacy for component testing is one of the hardest issues for component testing. To tackle this problem, it is a natural idea to apply mutation testing, which is a fault-based testing method used for measuring test adequacy, for component contracts, whose aim is to improve the testability of the component. Though powerful, mutation testing is usually very computationexpensive, as many mutants need to be produced and executed in mutation testing. In this paper, we propose a contract-based mutation technique for testing components. Based on the discordance between contracts and specification, our approach employs a set of high level contract mutation operators. The experimental results show that these operators can greatly reduce the number of mutants compared with traditional mutation operators. At the same time, the contract-based mutation using our contract mutation operators can provide almost the same ability as that of using traditional mutation operators. Moreover, effective test suite can be produced to reduce the maintenance effort. © 2005 IEEE.

关键词： computer software

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Modelling code mobility and migration: An OPM/Web approach

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International Journal of Web engineering and technology 2005年第1期2卷 6-28页

作者： Reinhartz-Berger, Iris Dori, Dov Katz, Shmuel Technion Israel Institute of Technology Technion City Haifa 32000 Israel Department of Management Information Systems University of Haifa Israel Information Systems Engineering Area Faculty of Industrial Engineering and Management Technion Israel Institute of Technology Israel MIT Cambridge United States Computer Science Department Technion Israel Institute of Technology Israel Systems and Software Development Laboratory Israel

Web applications exhibit dynamic behaviour through such features as animation, rapidly changing presentations, and interactive forms. The growing complexity of web applications requires a rigorous modelling approach capable of clearly and explicitly addressing code mobility issues. While mobile agent systems and programming languages support the implementation of code mobility with features such as applets or mobile agents, existing system analysis and design methods lack the facilities to model code mobility satisfactorily. OPM/Web is an extension of object-process methodology (OPM) for modelling distributed systems and web applications that enables intuitive modelling of code mobility concepts in a single framework. We propose generic OPM/Web models for common code mobility design paradigms, including Remote Evaluation, Code-on-Demand, PUSH and Mobile Agents. An OPM/Web model of a mobile application that handles requests for Quality of Service over the internet exemplifies the use and advantages of modelling such systems in OPM/Web. Copyright © 2005 Inderscience Enterprises Ltd.

关键词： World Wide Web

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A study of service composition with QoS management

A study of service composition with QoS management

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2005 IEEE International Conference on Web Services, ICWS 2005

作者： Fung, Casey K. Hung, Patrick C. K. Wang, Guijun Linger, Richard C. Walton, Gwendolyn H. Engineering and Information Technology Boeing Phantom Works United States Faculty of Business and Information Technology University of Ontario Institute of Technology Canada Software Engineering Institute Carnegie Mellon University United States Mathematics and Computer Science Dept. Florida Southern College United States

ISBN: (纸本)0769524095

Quality of Services (QoS) management in compositions of services requires careful consideration of QoS characteristics of the services and effective QoS management in their execution. A Web service is a software system that supports interoperable application-to-application interaction over the Internet. Web services are based on a set of XML standards such as Simple Object Access Protocol (SOAP). The interactions of SOAP messages between Web services form the theoretical model of SOAP Message Exchange Patterns (MEP). Web Services Business Process Execution Language (WSBPEL) defines an interoperable integration model that facilitates automated process integration in intra- and inter-corporate environments. A service-level agreement (SLA) is a formal contract between a Web services requestor and provider guaranteeing quantifiable issues at defined levels only through mutual concessions. Based on a prior research work on Message Detail Record (MDR), this paper further proposes a SOAP message tracking model for supporting QoS end-to-end management in the context of WSBPEL and SLA. This paper motivates the study of QoS management in a Web service composition framework with the evolution of a distributed toolkit in an industrial setting.

关键词： Telecommunication services

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Applying machine learning using Case-Based Reasoning (CBR) and Rule-Based Reasoning (RBR) approaches to object-oriented application framework documentation

Applying machine learning using Case-Based Reasoning (CBR) a...

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3rd International Conference on Information technology and Applications, ICITA 2005

作者： Jani, Hajar Mat Peck, Lee Sai College of Information Technology Universiti Tenaga Nasional Km. 7 Jalan Kajang-Puchong 43009 Kajang Selangor Darul Ehsan Malaysia Department of Software Engineering Faculty of Computer Science and Information Technology University Malaya 50603 Kuala Lumpur Malaysia

ISBN: (纸本)0769523161

Several challenges and problems of developing, using and maintaining object-oriented application frameworks have been identified. It was discovered that companies attempting to build or use large-scale reusable framework often fail unless they recognize and resolve challenges such as development effort, learning curve, integratability, maintainability, validation, defect removal, efficiency, and lack of standards. Framework documentation plays a major role in facing the above challenges. It directly affects the learning curve, maintainability, and defect removal aspects of the application frameworks. We have studied various documenting approaches and concluded that the current approaches are not very effective in overcoming the above challenges, especially on the efficiency problem. So, in this paper we are going to apply machine learning using case-based reasoning (CBR) and rule-based reasoning (RBR) to framework documentation. We will come up with a documentation architecture that combines both techniques in order to come up with improved framework documentation. © 2005 IEEE.

关键词： Learning systems

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Assignment marking via online self assess

Assignment marking via online self assess

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11th Australasian World Wide Web Conference, AusWeb 2005

作者： Schuhmacher, Margot Redpath, Robert Lecturer Higher Education Development Unit Centre for Learning and Teaching Support Monash University Clayton Campus Victoria 3800 Australia Lecturer School of Computer Science and Software Engineering Faculty of Information Technology Monash University Caulfield Campus Victoria 3174 Australia

This paper explores the use of online self assessment as a tool for guiding the assignment marking process. The study was motivated by a desire to assist staff in more efficiently completing assessment and to involve the students in the assessment process. Subsequently, the study evolved to overcome a deficit, being the failure to allow for automation of the inclusion of marking criteria in the assignment tool, in the Learning Management System. Consequent creation of the assignment marking guide in the form of an online quiz enabled students to perform self assessment after their assignment submission. Evaluation of the process indicates student self assessment contributed to their learning, providing them with relatively immediate feedback. Additional benefits include an improved assessment process for staff, feedback for both students and staff, and a persistent record of the entire process. Margot Schuhmacher and Robert Redpath, © 2005.

关键词： Students

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SPC-XML: A structured representation for nested-parallel programming languages

SPC-XML: A structured representation for nested-parallel pro...

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11th International Euro-Par Conference, Euro-Par 2005

作者： González-Escribano, Arturo Van Gemund, Arjan J. C. Cardeñoso-Payo, Valentín Dept. de Informática Universidad de Valladolid E.T.I.T. Campus Miguel Delibes 47011 - Valladolid Spain Embedded Software Lab. Software Technology Department Faculty of Electrical Engineering Mathematics and Computer Science P.O.Box 5031 NL-2600 GA Delft Netherlands

Nested-parallelism programming models, where the task graph associated to a computation is series-parallel, present good analysis properties that can be exploited for scheduling, cost estimation or automatic mapping to different architectures. In this paper we present an XML intermediate representation for nested-parallel programming languages from which the application task-graph can be easily derived. We introduce some design principles oriented to allow the compiler to exploit information about the task synchronization structure, automatically determine implicit communication structures, apply different scheduling policies, and generate lower-level code using different models or communication tools. Results obtained for simple applications, using an extensible prototype compiler framework, show how this flexible approach can lead to portable and efficient implementations. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Parallel processing systems

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Predicting Change Impact in Architecture Design with Bayesian Belief Networks

Predicting Change Impact in Architecture Design with Bayesia...

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Working IEEE/IFIP Conference on software Architecture

作者： A. Tang Yan Jin Jun Han A. Nicholson Faculty of ICT Swinburne University of Technology Melbourne Australia School of Computer Science and Software Engineering Monash University VIC Australia

Research into design rationale in the past has focused on the representation of reasons and has omitted the connections between design rationales and design artefacts. Without such connections, designers and architects cannot easily assess how changing requirements or designs may affect the system. In this paper, we introduce a model called Architecture Rationale and Element Linkage (AREL) to represent the causal relationship between architecture elements and decisions. We further model AREL as a Bayesian Belief Network (BBN) to capture the probabilistic relationships between architecture elements and decisions in an architecture design model. Such probabilistic modelling enables architects to quantitatively predict and diagnose impact of change when part of the requirements or designs are changing. Using a partial design of a cheque image processing system, we illustrate how AREL is used to represent the decision model and how BBN is used to predict and diagnose change in the architecture design. We use a UML tool to capture the AREL model and a BBN tool to compute the probabilities of change impact.

关键词： Intelligent networks Bayesian methods computer architecture Predictive models computer science software Design engineering Australia Couplings Image processing

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Contract-based mutation for testing components

Contract-based mutation for testing components

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International Conference on software Maintenance (ICSM)

作者： Ying Jiang Shan-Shan Hou Jin-Hui Shan Lu Zhang Bing Xie Institute of Software School of Electronics Engineering and Computer Science Peking University Beijing China Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming China

Testing plays an important role in the maintenance of component based software development. Test adequacy for component testing is one of the hardest issues for component testing. To tackle this problem, it is a natural idea to apply mutation testing, which is a fault-based testing method used for measuring test adequacy, for component contracts, whose aim is to improve the testability of the component. Though powerful, mutation testing is usually very computation-expensive, as many mutants need to be produced and executed in mutation testing. In this paper, we propose a contract-based mutation technique for testing components. Based on the discordance between contracts and specification, our approach employs a set of high level contract mutation operators. The experimental results show that these operators can greatly reduce the number of mutants compared with traditional mutation operators. At the same time, the contract-based mutation using our contract mutation operators can provide almost the same ability as that of using traditional mutation operators. Moreover, effective test suite can be produced to reduce the maintenance effort.

关键词： Genetic mutations Contracts software testing software reusability software maintenance Electronic equipment testing Programming Application software computer science Automation

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