The problems of alot material under distributed computing environment come down to many classical problems in computer domain . especially in our modern society where alot material has been widely used , researches on alot material under distributed computing environment to be more meaningful 分布環境下的物資分發問題涉及到計算機領域的各種經典問題,在現代社會物流應用越來越廣泛的今天,對分布環境下的物資分配進行研究顯得尤為有意義。
The system uses relational database management system for storage and . management of network flow data . by use of java technology and its distributed computing environment , the system separates business layer from data layer commendably . thus it has preferable extensibility and portability 本系統在采用大型關系數據庫對流量數據進行存儲和管理的同時,采用java及其分布式計算技術,很好的實現了邏輯業務層與數據層的分離,從而有較好的擴展性和可移植性。
With the continuous developments and extensive applications of technologies in the fields of both mobile communication and computer network , mobile computers can access kinds of network at any time and any place to get the data information they need in the near future . this special distributed computing environment is called mobile computing 隨著移動通信技術和計算機網絡技術的不斷發展和廣泛應用,在不久的將來,移動計算機可以在任何時間、地點接入各類網絡,以獲取所需的數據信息,這種特殊的分布式計算環境被稱為移動計算。
The grid resource management system is the important component in grid computing system . it resembles the traditional resource management systems under distributed computing environment and cluster computing environment , supporting three functions : job management , task schedule and resource management 網格資源管理系統是網格計算系統的重要組成部分,從為用戶提供方便、高效的服務的角度來看,它與傳統的分布式計算環境或集群計算環境下的資源管理系統類似,應當至少具備三種功能:作業管理、任務調度和資源管理。
The concept and technology of distributed computing environment are introduced in detail , followed by the introduction of service and function which windows dna provides . the feasibility of applying windows dna to remote fault diagnostic system is discussed and afterwards showed its construction in detail , network security plus 本文詳細介紹了分布式計算環境和分布式技術,闡述了windowsdna技術所能提供的服務和功能;探討了利用windowsdna創建遠程信號處理系統的可行性,提出了利用windowsdna技術架構遠程診斷信號處理系統的具體方法,展示了系統具有的組成結構,并說明了系統的網絡安全性等問題。
Differed from traditional messaging technologies , such as remote method invocation , jms promotes the reliability of asynchronous communication between components in distributed computing environments , and can be used for establishing loosely - coupled messaging system . therefore , it simplifies the development of enterprise applications 相比傳統消息傳送技術如rmi來說, jms促進了分布式計算環境中各個組件之間可靠的異步通信,可以用來構建松散偶合的消息系統,從而大大簡化了企業應用的開發過程。
The job management system ( jms ) is a vital part of the high - performance computing environment , it provides new mechanisms for submitting , scheduling , running and controlling jobs , it can make full use of all kinds of resources in the network thus can make a kind of high - performance and high - reliability distributed computing environment 作業管理系統是組成高性能計算環境的關鍵部分,它提供了作業提交、調度、執行及控制的新機制,可以充分利用網絡中的各種資源建立一種高性能和高可靠性的分布式計算環境。對作業管理系統進行研究是一件很有意義的工作。
Since 1990 ' s , distributed computing architecture began to transform into multi - tier from two - tier , and the borderline between client and server is ambiguous increasingly . traditional client / server architecture can not be adapted to distributed computing environments . distributed object technology can solve the problem 進入90年代以后,分布式計算結構開始從兩層向多層轉化,客戶機和服務器之間的界限也日漸模糊。傳統的客戶/服務器結構已經無法適合于分布式計算環境。
But the increases of application systems are also causing that data interoperations between them was more and more than before , the relationships between them more complex , and these systems being deployed in non homogeneous distributed computing environment . all these aspects are causing the maintenance costs of application systems too much high , the enterprises slowly meeting requirements of customers , and the couplings between systems too much strong 但是,隨著應用系統的增加,各個應用系統之間需要的數據互操作愈來愈多,系統之間的關系愈來愈復雜,而且企業計算環境通常是異構分布式計算環境,這造成了整個企業的管理信息系統的維護成本增加、應對復雜多變的應用需求滯后、各個應用系統之間的耦合性強、魯棒性差等缺點。
Distributed objects and world wide web are playing a more and more important role in the construction of enterprise distributed computing environment because the former can be used to wrap business logic and accessed through heterogeneous platforms , and the latter offer powerful abilities in the information integration and interaction with end user 隨著計算機應用技術的發展和市場競爭加劇,開發高效、安全的企業信息系統已經成了各企業為了提高各自生存和競爭能力的重要手段之一。新型的信息系統不僅需要支持局域網下各個部門應用,更要建立基于internet的企業間信息交互和資源共享。
The Distributed Computing Environment (DCE) is a software system developed in the early 1990s by a consortium that included Apollo Computer (later part of Hewlett-Packard), IBM, Digital Equipment Corporation, and others. The DCE supplies a framework and toolkit for developing client/server applications.