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International Conference on Wireless and Optical Communications Networks

作者： Kousalya, G Narayanasamy, P Sri Krishna Coll Engn & Technol Dept Comp Sci & Engn Coimbatore 641008 Tamil Nadu India

ISBN: (纸本)0780390199

distributed middleware technology is emerging as a flexible promising solution for network resource management and QoS (Quality of Service) control in a distributed environment. The concept of dynamic bandwidth reservation (DBR) algorithm additionally allocates the terminated bandwidth for an ongoing call is one of the promising methods to reduce the new call blocking and handoff call dropping probabilities. Dynamic resource management (DRM) framework concentrates on design and developing a framework for allocating shared resources to support multiple QoS and to provide probabilistic assurances of service in wireless networks. Existing methods and architecture do not guarantee on resource allocation and management in mobile, wireless and ad hoc networks. When a mobile node (MN) moves from its home network (HN) to foreign network (FN), the minimal required resources and services can be provided locally in the current network where it is connected presently. Dynamic resource management (DRM) framework provides an application level simulator for wireless network with new QoS management concept. DRM framework comprises of a set of programmable distributed objects and distributed middleware. DRM framework is constructed using distributed objects and distributed middleware. distributed object carry applications across networks and allow them to connect to local server with FN in the same way as they had moved from the HN. The framework must dynamically accommodate multimedia calls with different bandwidth requirements in response to network traffic and it supports mobility management. The utility of DRM framework describes how the required resources are reserved based on the user priority option in an adaptive manner. The proposed DBR algorithm guarantees the required bandwidth during call setup and handoff without any flow rejection.

关键词： mobility management RSVP distributed objects distributed middleware

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Telecommunications services management with computational reflection, using CORBA and JAVA

Telecommunications services management with computational re...

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SBT/IEEE Telecommunications Symposium (ITS 98)

作者： Goncalves, PRR Bosco, J Sobral, M Univ Fed Santa Catarina INE Network & Management Lab BR-88040900 Florianopolis SC Brazil

ISBN: (纸本)0780350308

Currently, the telecommunications management systems are powerful, however maintain centralized and proprietary platforms, limiting this way, the growth of these telecommunications networks. This factor generates the need Ibr scalable and open systems, stimulating the sectors of the telecommunications area to seek for solutions for the problem in distributed heterogeneous and totally scalable environments. The recent advances in the area of distributed objects, has created many positive expectations for the development of client/server systems which use, as if they were local, resources available through the network, This way the objective of this work consists in the experimental evaluation of the potential of the main CORBA services in conjunction with the Java language, through the necessary requirements for the main functionalities proposed by the TMN architecture. For the implementation of the telecommunication services with the reusability of codes we use computational refection with meta-classes substituting the manager and classes substituting the agents.

关键词： distributed systems distributed objects computational reflection CORBA JAVA TMN

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distributed object-based systems: An overview 11

Distributed object-based systems: An overview

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11th International Conference on Intelligent Systems - Emerging Technologies

作者： Ganta, R Al-Mubaid, H Univ Houston Clear Lake Software Engn Dept Houston TX 77058 USA

ISBN: (纸本)1880843439

distributed object-based systems are becoming more common in distributed system applications. The object-based model of distributed systems allows objects dispersed on multiple remote machines to interact with one another to exchange data and services. The interaction among remote objects is carried out in an efficient and transparent manner. In this paper, we present an overview of the design and functionality of the object-based model of distributed systems. We also discuss three of the most common object-based distributed systems: CORBA, Java RMI, and DCOM. The paper explains key aspects of these systems like communication, naming, and fault-tolerance. Finally, we clarify some notions in these systems by means of comparisons.

关键词： distributed object-based systems distributed systems distributed objects distributed operating systems operating systems

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Experiences with the use of CORBA 24

Experiences with the use of CORBA

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24th EUROMICRO Conference

作者： Niemela, E Holappa, M VTT Elect FIN-90571 Oulu Finland

ISBN: (纸本)0818686464

distributed computer integrated systems (CIM) developed by integrating commercial and off-the-shelf software components, have to fulfil the needs of,flexibility required by the end-users and the production lint? itself A software architecture designed for a product family and standard interface technologies are a good basis for extendible and scalable systems that can be connected to factory management systems. In our approach an object-oriented technology is used to increase flexibility and reuse in a product family of manufacturing execution systems (MES). The CORBA technology for transparent communication and a legacy system with application-specific CORBA wrappers provide the interoperability necessary for heterogeneous manufacturing systems. The event-driven behaviour of MES applications is supported by an active database based on a commercial CORBA implementation and an object-oriented database.

关键词： CORBA middleware distributed objects software architecture CIM systems

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Case study: Data management strategies in an integrated pathway tool

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Applied Bioinformatics 2004年第1期3卷 63-75页

作者： Bernauer, Sabine Croft, David Gardina, Paul Minch, Eric De Rinaldis, Manuel Vatcheva, Ivayla LION Bioscience AG Heidelberg Germany Epiontis GmbH Berlin Germany Merck Research Laboratories West Point PA United States Istituto di Ricerche di Biologia Molecolare (Merck) Rome Italy German Cancer Research Center (DKFZ) Heidelberg Germany Merck Research Laboratories WP37B-200 West Point PA 19486-004 PO Box 4 United States

This paper describes the development strategies for an integrated tool to support scientists in the creative exploration of data relating to biochemical pathways. The multiple user groups, diverse functionalities, and many types and sources of data demanded a flexible yet coherent approach. This paper summarises the software requirements and the implied modules and functions, and focuses on the design decisions relevant to the representation, management and flow of data. Finally, several case studies in the use of the software are described and evaluated, and recommendations are made for future work. © 2004 Open Mind Journals Limited. All rights reserved.

关键词： Biochemical pathways CORBA Data integration Data representation distributed objects Metabolism Ontologies Signalling and regulation Text management XML

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Image workflow enterprise architecture of the Clarian Health system

Image workflow enterprise architecture of the Clarian Health...

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13th IEEE Symposium on Computer-Based Medical Systems (CBMS 2000)

作者： Hoang, D Bukhres, O Davenport, C Indiana Univ Purdue Univ Dept Comp & Informat Sci Indianapolis IN 46202 USA

ISBN: (纸本)0769504841

Recently, technological advances in digital imaging modalities and high-speed networks have enabled physicians to store digital medical images and integrate them with the patient's electronic medical record for fast access by computer. This paper outlines the characteristics and design requirements of an Image Workflow Management System (IWFMS) in a large-scale hospital environment. In this paper, we present an enterprise four-tiered architecture of the image workflow management system for supporting streamlining, automating, and monitoring the flow of the medical images in a large-scale consortium of hospitals known as the Clarian Health system in Indianapolis, Indiana;The first tier presents the Graphic User Interface (GUI) that enables users to view and interact with the workflow engine. The second tier implements the business model that depends on the work requirements within the different units of the hospital system. The third tier implements the business logic and automates tasks that support image flows. The fourth tier is the back-end database tier used to store and retrieve workflow data. The components in each tier have been designed and implemented as a set of CORBA objects that provide seamless integration of the image flows in the Clarian Health System.

关键词： Image Workflow Management System image workflow CORBA servlet object oriented architecture visibroker distributed objects object management

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Web System for Visualizing and Executing Methods on Web objects in XML

Web System for Visualizing and Executing Methods on Web Obje...

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International Conference on Computational Science and Computational Intelligence (CSCI)

作者： Garcia-Mendoza, Betzabet Hernandez-Salinas, Jose M. Jaimez-Gonzalez, Carlos R. Univ Autonoma Metropolitana Unidad Cuajimalpa Dept Tecnol Informac Mexico City Mexico

ISBN: (纸本)9798350361513;9798350372304

This paper presents a web system that allows to display and execute methods on objects created with the Web objects in XML (WOX) framework, where the user can provide values for each of the method parameters through a web interface. The paper also reviews some existing systems with similar functionality and shows some of their relevant features. The interface of the system is presented, along with some examples that demonstrate its functionality, in particular, the paper shows how a user can display and execute methods on WOX objects. It should be noted that WOX is a framework that allows the creation of object-based distributed applications, which are interoperable among different object-oriented programming languages. WOX uses XML as the format representation for objects, and it uses HTTP as its transport protocol.

关键词： Web objects in XML visualization of methods execution of methods distributed objects

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Using scoping rules as a distributed coordination language

Using scoping rules as a distributed coordination language

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30th Hawaii International Conference on System Sciences (HICSS 30)

作者： Fuchs, M Walt Disney Imagineering Glendale CA 91221 USA

ISBN: (纸本)0818677430

Essential to coordinating a distributed application is organizing and traversing the distributed application graph. Lexical scoping performs this function among modern high-level programming languages, but does nor have the same distinction in distributed programming systems, where it competes with various forms of associative and object-oriented binding, We will show that distributed lexical scoping, combined with closures, provides a powerful means of coordinating communication in distributed computations and can significantly reduce the complexity for developing certain types of applications vis-a-vis other coordination paradigms/languages. These results are not dependent on a particular programming language, and can be combined with existing paradigms.

关键词： coordination languages Scheme distributed systems lexical scoping distributed objects

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Global object integration infrastructure supplementing SOA with data management - Perspectives of creation

Global object integration infrastructure supplementing SOA w...

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3rd International Conference on Software and Data Technologies

作者： Ovchinnikov, Vladimir V. Vakhromeev, Yuri V. Pyatih, Pavel A. Fusionsoft Lipetsk Russia

ISBN: (纸本)9789898111531

The paper considers a way of data-centric object integration supplementing SOA with data management. The key aim of the proposed approach is to provide unlimited scalability of object integration into one object space, having the classic typification mechanism, the general security and transaction management. Declarative publishing of objects in the space make it possible to read, refer and modify any of them in the general way, in secure and transactional manner in spite of where they are stored actually (RDBMS, XML, etc.).

关键词： object integration infrastructure distributed objects global object space

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software/FPGA co-design for Edge-computing: Promoting object-oriented design

software/FPGA co-design for Edge-computing: Promoting object...

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作者： Xuan Sang Le Universite de Bretagne Occidentale

学位级别：博士

Cloud computing is often the most referenced computational model for Internet of Things. This model adopts a centralized architecture where all sensor data is stored and processed in a sole location. De- spite of many advantages, this architecture suffers from a low scal- ability while the available data on the network is continuously in- creasing. It is worth noting that, currently, more than 50% internet connections are between things. This can lead to the reliability prob- Iem in realtime and latency-sensitive applications. Edge-computing, which is based on a decentralized architecture, is known as a solu- tion for this emerging problem by: (1) reinforcing the equipment at the edge (things) of the network and (2) pushing the data processing to the edge. Edge-centric computing requires sensors nodes with more software capability and processing powerwhile, like any embedded systems, being constrained by energy consumption. Hybrid hardware sys- tems consisting of FPGA and processor offer a good trade-off for this requirement. FPGAS are known to enable parallel and fast compu- tation within a low energy budget. The coupled processor provides a flexible software environment for edge-centric nodes. Applications design for such hybrid network/software/hardware [SW/HW) system always remains a challenged task. It covers a large domain of system level design from high level software to low- Ievel hardware [FPGA). This results in a complex system design flow and involves the use of tools from different engineering domains. A common solution is to propose a heterogeneous design environ- ment which combining/integrating these tools together. However, the heterogeneous nature of this approach can pose the reliability problem when it comes to data exchanges between tools. Our motivation is to propose a homogeneous design methodology and environment for such system. We study the application of a modern design methodology, in particular object-oriented design [OOD], to the ﬁeld o

关键词： IoT Edge Computing FPGA Object Oriented Design distributed objects

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