204.B基于Web的科研信息管理系统的设计 外文文献翻译.doc
《204.B基于Web的科研信息管理系统的设计 外文文献翻译.doc》由会员分享,可在线阅读,更多相关《204.B基于Web的科研信息管理系统的设计 外文文献翻译.doc(9页珍藏版)》请在三一文库上搜索。
1、学校代码: XXX学 号:XXX 本科毕业设计外文文献翻译(学生姓名:XXX学 院:信息工程学院系 别:计算机系专 业:软件工程班 级:软件06指导教师:XXX 讲 师二一年六月8XXX工业大学本科毕业设计外文文献翻译WWW-BASED RELIABILITY INFORMATION SYSTEMSo-Yeon LEE, Jai-Sang KohReliability Engineering TeamElectronics and Telecommunications Research Institute161 Kajong-Dong, Yuseng-Gu, Taejon, 305-350,
2、KoreaE-mail : syleeetri.re.krABSTRACTThis paper discusses the reliability information system developed with the concept of world wide web (WWW) and client/server architecture. An existing server and client for the system are modified to perform HTTP duties and graphically advanced reliability analys
3、is. The technical background and the relationship of the WWW and client/server system is explained. With the developed system, the design engineers and reliability analysts can analyze the reliability of the system more quickly and conveniently. ? 1998 Elsevier Science Ltd. All rights reserved.KEYWO
4、RDS: Information system, WWW, client/server architecture, reliability1. INTRODUCTIONInformation systems are used in many practical applications and sometimes it is very useful for decision making. The accepted notion for the information system is that it should model the flow of information in a giv
5、en organizational structure. In reliability engineering, researchers are faced with several difficult tasks in accessing and analyzing data. Most data are accumulated in the system development site apart from the reliability analysts site. In case of component data, the application-specific data (fo
6、r example, applied stress levels, number of functional pins, etc.) which is designed by system developers are important when computing failure rate of each component. It is important to obtain such data at a right moment for concurrent engineering. The client/server approach is perceived as an effec
7、tive way to integrate computing resources in an organization. Users can share data, applications, and processing power in the client/server environment much easier than in the traditional centralized computing environment. The ability to balance the work load between clients and servers depending on
8、 the application is a key feature of the client/server system. The world wide web(WWW) has evolved into a vehicle supporting interactive data visualization and distribution. WWW greatly owns its success in the standardization aspect with the information being exchanged the clients and server. And al
9、so WWW-based systems can be built rapidly since no special resources are required when developing the client and server software or network protocols. In this paper, we describe the implementation of the reliability information system based on the technology of WWW and Client/Server. Section 2 provi
10、des a brief overview of WWW applied to the client/server computing. Section 3 introduces the implementation details of the reliability information system. And the conclusion and further study will be discussed in Section 4.2. WWW AND CLIENT-SERVER ARCHITECTUREClient/server architecture can be explai
11、ned as the relationship between two processes that are cooperating to perform some tasks. R supports the scalability and the integrity of an information system. Lyu (1995) discussed the four benefits of the client/server environment such as lower cost, higher productivity, longer system life cycle,
12、and better usability. Therefore, the client/server system architecture is considered as a feasible framework for information systems. With the advent of the WWW, the most easiest way of implementing the client/server architecture is to use web browser where the client so ware does nothing more than
13、display and format information retrieved from the server. Several kinds of retrieval system for bibliography are the representative examples. By using a web browser as the platform for client to access an existing client/server system, only one set of code(the HTML and helper code) for the system ne
14、eds to be maintained. But in the case of other systems, where the client software performs additional tasks on behalf of the server or the users, the mediator is needed to perform this work for the web browser-based clients. The typical solution is to use common gateway interface (CGI) programs. But
15、 this method is unsatisfactory for various reasons. With a CGIbased system, all work, normally done by the client, must be emulated by the CGI programs. Therefore it adds more load to the server machine. Another approach of accessing client/server applications from standard WWW browsers was made by
16、Dossick and Kaiser. They suggested a scheme to use a HTTP proxies as a method of connecting an existing client/server system to the web. This HTTP proxy intercepts HTTP requests for data and transforms them into requests for the legacy system using its native protocols. It is possible to use browser
17、-specific tools like Netscapes Plug-In APIs to create web browser based clients for client/server systems. However, using these APls limits the use of the resulting web-based client sofivcare to specific platforms and specific web browsers. This is an unnecessary limitation which negates many benefi
18、ts of creating a web-based client.3. IMPLEMENTED SYSTEMElectronics and Telecommunications Research Institute(ETRI) has developed the reliability information system called the ERIS. It computerized the calculation of the component failure rates and the reliability of a complex system. The client prog
19、ram of the ERIS consisted of two independent programs having different hardware platform, workstaion and personal computer. It was inconvenient to the users who are not familiar with UNIX environment. The special requirements for reliability software tools are pointed out by Birolini. In order to be
20、 a useful tool for users, having a large component database is the very important compared to other requirements. Under the standalone computing environment, users should own the component data storage independently. It will be waste of computing resources and time. The most available tools are stan
21、dalone so it is very inconvenient to share component data between users. Considering the above requirements and opinions collected from field trial of the ERIS, we draw the following items. User-friendly human interface : The man-machine interface is important for efficient handling of large amount
22、of data. Also it is helpful understanding the overall results of an analysis.Openness : The information service must be broadly accessible. Openness also reflects in the end users possibilities to easily integrate reliability information into other application for use in the client station. Data sha
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 204.B基于Web的科研信息管理系统的设计 外文文献翻译 204. 基于 Web 科研 信息管理 系统 设计 外文 文献 翻译
链接地址:https://www.31doc.com/p-5116986.html