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Measuring object-orientedness: The invocation profile 10th

10th International Workshop on software Measurement, IWSM 2000

作者： Rosner, Peter Hall, Tracy Mayer, Tobias Centre for Systems and Software Engineering South Bank University Borough Rd LondonSE1 0AA United Kingdom Department of Computer Science University of Hertfordshire Hatfield HertfordshireAL10 8AB United Kingdom

ISBN: (纸本)3540417273

This paper introduces the invocation profile as the basis for a suite of metrics to indicate the presence and mix of object-oriented mechanisms in a system written in an object-oriented language. This addresses concerns of practitioners and stakeholders that object-oriented mechanisms should be adequately exploited in such a system and gives an indication of the skills needed by developers for system enhancement and maintenance. An outline is given of plans to implement this metrics suite for systems written in Java. © Springer-Verlag Berlin Heidelberg 2001.

关键词： Object oriented programming

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Active resource management for the differentiated services environment

Active resource management for the differentiated services e...

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International Workshop on Active Middleware Services

作者： A. Ramanathan M. Parashar The Applied Software Systems Laboratory Department of Electrical and Computer Engineering State University of New Jersey Rutgers Piscataway NJ USA

ISBN: (纸本)0769515282

This paper presents a mechanism for active resource management (ARM) in a differentiated services environment.. While the differentiated services architecture and the bandwidth broker agent provide a mechanism for QoS management through resource reservation, this mechanism is based on a static provisioning of resources. As bandwidth requirements are typically dynamic, such a static reservation approach can either lead to wasted bandwidth or leave applications resource-starved. The active resource management approach presented in this paper addresses this problem by dynamically, reallocating resources based on current network state and applications requirements. An implementation and evaluation of ARM using the NS-2 simulation toolkit is also presented.

关键词： Resource management Bandwidth Quality of service Telecommunication traffic Internet software systems Laboratories computer architecture Time factors Protocols

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Application of computational intelligence techniques in active networks

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Soft Computing 2001年第4期5卷 264-271页

作者： Vasilakos, A. V. Anagnostakis, K. G. Pedrycz, W. Institute of Computer Science (ICS) Foundation of Research and Technology-HELLAS (FORTH) P.O.Box 1385 71110 Heraklion Crete Greece GR Distributed Systems Lab CIS Department University of Pennsylvania US Department of Electrical and Computer Engineering University of Alberta Canada CA

Computational intelligence techniques have been successfully used for solving control problems in packet-switching network architectures. The introduction of active networking adds a high degree of flexibility in customizing the network infrastructure and introducing new functionality. Therefore, there is a clear need for investigating both the applicability of computational intelligence techniques in this new networking environment, as well as the provisions of active networking technology that computational intelligence techniques can exploit for improved operation. We report on the characteristics of these technologies, their synergy and on outline recent efforts in the design of a computational intelligence toolkit and its application to routing on a novel active networking environment.

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Architectural issues for cross-organisational B2B interactions

Architectural issues for cross-organisational B2B interactio...

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International Conference on distributed Computing systems Workshop

作者： K. Schulz M.E. Orlowska DSTC Private Limited. CRC for Distributed Systems Technology University of Queensland QLD Australia Department of Computer Science and Electrical Engineering University of Queensland QLD Australia

ISBN: (纸本)0769510809

In a world of electronic interconnectivity, concepts for process automation within an organisation need to be extended to support co-operation with customers and partners across organisational boundaries. Current workflow standards provide only limited support to enable this interconnectivity. We propose a model for tiering business processes into the private business processes of organisations and those shared business processes that interconnect them. Private business processes can expose interaction points, and shared processes can link to these points so that an overall business process may span two or more organisations. The interaction points can selectively expose information about the processes and process tasks of an organisation. This paper also shows how these ideas can be supported by a coordinating architecture and describes a prototype that implements the key ideas. The proposed architecture that supports inter-organisational business processes was initially validated in the Vega final demonstration that brought together six different companies in a virtual enterprise. The implementation built upon OMG's Workflow Management Facility Specification concept for inter-workflow management interfaces, incorporated existing workflow management systems, including SAP R/3, and also non-process-oriented systems. Available services were selected at run time according to their capabilities and their availability. Experience from the demonstration with all the involved components showed a dynamic linkage between existing business processes and reliable communication between the business partners.

关键词： Workflow management software Companies Prototypes Business communication Cyclic redundancy check Australia Automation Standards organizations Data structures Virtual enterprises

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Middleware support for voting and data fusion

Middleware support for voting and data fusion

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International Conference on Dependable systems and Networks (DSN)

作者： D.E. Bakken Z. Zhan C.C. Jones D.A. Karr School of Electrical Engineering and Computer Science Washington State University Pullman WA USA Distributed Systems and Logistics Department BBN Technologies GTE Cambridge MA USA

Middleware is a class of software systems above the operating system which is becoming widely used for programming distributed systems. Voting is a fundamental operation when distributed systems involve replicated components. However support for voting in middleware is very limited. The paper describes issues involved with supporting voting, and more general data fusion, in middleware. We describe the Voting Virtual Machine (VVM) architecture, which can be embedded in different middleware substrates such as .NET and CORBA. We also describe its companion Voting Definition Language (VDL), which allows for portable description of voting algorithms. The VVM and VDL, together with the external VVM voting manager provide for voting transparency and adaptive voting. Finally, we describe how the simple "byte-by-byte" value comparison schemes used in other voting middleware as well as in byzantine fault tolerant multicast systems do not work in the face of the heterogeneity inherent in distributed systems.

关键词： Middleware Voting computer science software systems Virtual machining Fault tolerant systems Availability distributed computing Logistics Content addressable storage

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A family-oriented software development process for engine controllers

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Lecture Notes in computer Science

作者： Allenby, Karen Burton, Simon Buttle, Darren McDermid, John Murdoch, John Stephenson, Alan Bardill, Mike Hutchesson, Stuart Rolls-Royce University Technology Centre in Systems and Software Engineering Department of Computer Science University of York YorkYO10 5DD United Kingdom Rolls-Royce Plc Control Systems SinC-3 P.O. Box 31 Moor Lane DerbyDE24 8BJ United Kingdom

ISBN: (纸本)3540425713

This paper presents a software engineering process that includes family-based aspects for aero-engine control software. The process uses a "family capability" derived from family analysis of the embedding system. This analysis allows reuse capability to be designed into the process by exploiting prior knowledge of the differences between members of an engine family. The process described follows the traditional software lifecycle. However, the nature of the stages is modified to incorporate the use of the family capability, essentially to allow systematic application of both compositional and generational reuse throughout the development process. The process described was evaluated on a trial project to develop, and subsequently modify, a thrust reverser system for a small aero-engine. Initial results show that this process can reduce effort for both initial and subsequent developments through the use of the family capability. © Springer-Verlag Berlin Heidelberg 2001.

关键词： Engines

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Advances in software specification and verification introduction to minitrack

Advances in software specification and verification introduc...

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Annual Hawaii International Conference on System Sciences (HICSS)

作者： A.E.K. Sobel R.C. Linger Computer Science & Systems Analysis Department Miami University Oxford OH USA Software Engineering Institute Carnegie Mellon University Pittsburgh PA USA

Provides an overview of the technical articles and features presented in this minitrack.

ISBN: (纸本)0769509819

Provides an overview of the technical articles and features presented in this minitrack.

关键词： Documentation software testing Protocols Application software Automatic testing System testing Control theory Streaming media computer science software engineering

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Resource allocation for handling two QoS classes at a generic radio cell

Resource allocation for handling two QoS classes at a generi...

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IEEE Conference and Exhibition on Global Telecommunications (GLOBECOM)

作者： M. Cheung J.W. Mark Communications Software Group Cisco Systems Inc. San Jose CA USA Department of Electrical & Computer Engineering University of Waterloo Waterloo ONT Canada

Resource allocation plays an important role in call admission control (CAC). In a wireless environment where resource is scarce, an efficient resource allocation scheme is of critical importance. A movable boundary (NO) resource allocation scheme for handling real-time (RT) and non-real-time (NRT) traffic at the base station is proposed. Numerical results show that this scheme reduces the resource requirement and increases the utilization of NRT traffic significantly while maintaining the service performance of RT traffic.

关键词： Resource management Base stations Time division multiplexing Channel allocation systems engineering and theory Call admission control Communication system traffic control computer networks Communication networks Knowledge engineering

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Design and implementation of Automatic Parallel Detection Layer

Design and implementation of Automatic Parallel Detection La...

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IEEE International Conference on systems, Man and Cybernetics

作者： M. Ahamed H. Eldeeb S. Nassar N. Bagherzadeh Computer Science Mathematics Department Faculty of Science Cairo University Cairo Egypt Electrical and Computer Engineering University of California Irvine Irvine CA USA Computer & Control Department Electronic Research Institute Head of Parallel and Distributed Systems team Cairo Egypt Chair of Electrical and Computer Engineering University of California Irvine Irvine CA USA

We develop a new software layer called the Automatic Parallel Detection Layer (APDL) for the automatic transformation from sequential to parallel code. The main interest, in this research, is the parallelism at loop level, because significant parallelism in programs almost invariably occurs in loops. The proposed APDL has five processes for code transformation: the sequential source code parser, data dependence analysis of this code, partitioning, scheduling both task and data, and generating parallel source code. Many cases have been studied to evaluate the performance of the developed layer. The performance is evaluated depending on the execution time of: the sequential code, the parallel programmer code, and the code output from APDL for the same case study. Performance results show that APDL greatly improves the execution time with respect to sequential execution time, and saves on the high cost of a parallel programmer.

关键词： Parallel processing Concurrent computing Programming profession Electronic mail Program processors distributed computing High performance computing computer science Automatic control Parallel programming

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A TV program generation system using digest video scenes and a scripting markup language

A TV program generation system using digest video scenes and...

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Annual Hawaii International Conference on System Sciences (HICSS)

作者： Y. Shirota T. Hashimoto A. Nadamoto T. Hattori A. Iizawa K. Tanaka K. Sumiya Software Research Center Imaging System Business Group Ricoh Company Limited Japan Division of Information and Media Science Graduate School of Science and Technology Kobe University Japan Department of Computer and Systems Engineering Graduate School of Science and Technology Kobe University Japan Division of Urban Information Systems Research Center for Urban Safety and Security Kobe University Japan

ISBN: (纸本)0769509819

This paper describes a TV program generation system using digest video scenes that are retrieved from video streams with the program indexes. The key features of the system are: (1) TV programs can be dynamically generated from digest video scenes selected by user preference. (2) Directions can be added using a happiness or sadness level based on the user preferences. (3) Personalized TV programs for an individual viewer can be made. The procedures taken by the system are as follows: (1) Conjunctive expressions between scenes are automatically generated; (2) Emotional expressions are automatically generated by user preference; (3) TV program metaphors are defined; (4) Direction templates corresponding to the metaphors are defined; (5) These expressions and definitions are coded using a markup language, and (6) Contents such as virtual characters and movies are synchronized. The resultant program can be shown on a TV set.

关键词： Layout Markup languages TV broadcasting Satellite broadcasting Information retrieval Broadcast technology Digital TV Companies Streaming media Character generation

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