【正文】
戶/數(shù)據(jù)庫管理和可靠性分析。 用戶管理:用戶信息存儲能夠有效處理增加的用戶。同時他對理解分析結(jié)果是非常有幫助的。在單機環(huán)境下,用戶可以擁有獨立的數(shù)據(jù)存儲。ERIS的客戶端程序包括由兩個中立程序組成,他們處于不同的硬件平臺:工作站以及個人電腦上。不過,使用這種APIs把產(chǎn)生的基于網(wǎng)絡(luò)客戶端軟件的使用限制在了專用平臺以及專用網(wǎng)絡(luò)瀏覽器上。另一種從標準互聯(lián)網(wǎng)瀏覽器獲得客戶端/服務(wù)器應(yīng)用的方法是由Dossick和Kaiser發(fā)明的。典型的解決辦法是使用通用網(wǎng)關(guān)接口(CGI)程序。隨著互聯(lián)網(wǎng)的發(fā)展,實現(xiàn)客戶端/服務(wù)器結(jié)構(gòu)的最簡單的方法,就是在客戶端軟件的任務(wù)不過是顯示及格式化從服務(wù)器取得的信息時使用網(wǎng)絡(luò)瀏覽器??蛻魴C/服務(wù)器結(jié)構(gòu)的關(guān)系可以說是兩個進程合作運行一些任務(wù)。同樣,在發(fā)展客戶端與服務(wù)器軟件或網(wǎng)絡(luò)協(xié)議時,如果沒有要求特殊資源,基于互聯(lián)網(wǎng)的系統(tǒng)可以迅速被創(chuàng)造。與傳統(tǒng)集中計算機環(huán)境相比,在客戶端/服務(wù)器環(huán)境下,用戶共享數(shù)據(jù)、應(yīng)用、處理進程都更加容易。一般認為,信息系統(tǒng)是構(gòu)建在某一特定組織結(jié)構(gòu)模型數(shù)據(jù)流程。對系統(tǒng)中現(xiàn)有客戶和服務(wù)器進行修正改造來執(zhí)行HTTP任務(wù)和高級制圖分析。s PlugIn APIs to create web browser based clients for client/server systems. However, using these APls limits the use of the resulting webbased client sofivcare to specific platforms and specific web browsers. This is an unnecessary limitation which negates many benefits of creating a webbased client.3. IMPLEMENTED SYSTEMElectronics and Telemunications Research Institute(ETRI) has developed the reliability information system called the ERIS. It puterized the calculation of the ponent failure rates and the reliability of a plex system. The client program of the ERIS consisted of two independent programs having different hardware platform, workstaion and personal puter. It was inconvenient to the users who are not familiar with UNIX environment. The special requirements for reliability soft39。s site. In case of ponent data, the applicationspecific data (for example, applied stress levels, number of functional pins, etc.) which is designed by system developers are important when puting failure rate of each ponent. It is important to obtain such data at a right moment for concurrent engineering. The client/server approach is perceived as an effective way to integrate puting resources in an organization. Users can share data, applications, and processing power in the client/server environment much easier than in the traditional centralized puting environment. The ability to balance the work load between clients and servers depending on 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 also WWWbased 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 provides a brief overview of WWW applied to the client/server puting. 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