Browsing by Author "Perng, NC"

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A new development environment for an event-based distributed system
(2003-08-01)
Hsiao, TY
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Perng, NC
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Lo, W
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Chang, YS
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Yuan, SM
The rapid growth of data exchange on the Internet has created many critical problems that require an answer. Traditional data exchange systems based on client/server communication models are less scalable and incur especially high maintenance cost in the data exchange domain. For these reasons, many researchers have switched their interest to asynchronous communication models. Although Message-Oriented Middleware (MOM) is a middle-tier infrastructure that links operating systems and applications, such asynchronous communication APIs supported by middleware vendors are usually hard to use. For these reasons, in this study, we present a new development environment for asynchronous communication platforms which we term Ghostwriter. The keyword for our development environment is 'easy', that is, easy to,use, easy to develop, and easy to deploy. Therefore, many researchers have switched their interest to asynchronous communication models. In addition, learning about and implementing the functions of the asynchronous communication's clients in Ghostwriter environment is simple. Other benefits are a lower technical learning curve, help for concentrate on system design, has easily reusable components, and easily integrated applications. (C) 2003 Elsevier Science B.V. All rights reserved.
An asynchronous high confident information interchange infrastructure
(2001)
Hsiao, TY
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Shen, RK
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Liang, KC
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Perng, NC
;
Yuan, SM
Data exchange by networks is getting important due to the growing of Internet. One of the popular architectural styles for distributed, loosely-coupled, heterogeneous network systems is a structure based on event generation, observation and notification. In this paper, we propose the event-based data exchange model to solve the problems encountered by traditional data exchange systems, We provide two main contributions to the study of data exchange system. First, we cover the surveys of data exchange systems currently on the market as well as the proposed architecture, MEDEA(Model of Event-based Data Exchange Architecture). Second, XML plays an important role in data exchange system now. We also propose a solution, which is called CODEX(Content-Oriented Data EXchange model), combines the features of mark-up language XML and the architecture of MEDEA. CODEX contains functions like primitive data type checking, data classification, data filtering, user identity and user filtering.