Client/Server Architecture and Attributes :: essays research papers

Client/Server Architecture and AttributesThe client/ emcee softw ar system architecture is a versatile, message-based and modular infrastructure that is intended to improve usability, flexibility, interoperability, and scalability as compared to centralized, mainframe, time share computing. A client is defined as a requester of clip and a waiter is defined as the provider of services. A single machine can be both a client and a host depending on the software configuration. This technology description provides some common client/server architectures and attributes. The original PC networks were based on a file share architecture, where the server downloads files from the shared location to the desktop environment. The requested user job is then run (including logic and data) in the desktop environment. File sharing architectures work if shared usage is low, update contention is low, and the volume of data to be transferred is low. In the 1990s, PC LAN (local area network) comp uting changed because the capacity of the file sharing was strained as the number of online user grew (it can only satisfy about 12 users simultaneously) and graphical user interfaces (graphical user interfaces) became popular (making mainframe and terminal displays come forward out of date). PCs are now being used in client/server architectures.As a result of the limitations of file sharing architectures, the client/server architecture emerged. This approach introduced a database server to replace the file server. Using a relational database management system (DBMS), user queries could be answered directly. The client/server architecture reduced network traffic by providing a query response rather than total file transfer. It improves multi-user updating through a GUI front end to a shared database. In client/server architectures, Remote Procedure Call (RPCs) or standard query language (SQL) statements are typically used to communicate between the client and server. The following descriptions provide examples of client/server architectures. A unique structure is a two- floor architecture. With two tier client/server architectures the user system interface is usually located in the users desktop environment and the database management services are usually in a server that is a more powerful machine that services many clients. Processing management is split between the user system interface environment and the database management server environment. The database management server provides stored procedures and triggers. There are a number of software vendors that provide tools to simplify development of applications for the two-tier client/server architecture. The two-tier client/server architecture is a good solution for distributed computing when work groups are defined as a dozen to 100 population interacting on a LAN simultaneously.