Software architecture and design (VIII) -- distributed architecture

Distributed architecture

In a distributed architecture , Components are presented on different platforms , And several components can cooperate with each other through the communication network , To achieve a specific goal or purpose .

Distributed architecture concept

Distributed systems can be implemented through clients - Demonstrate the server architecture , Form the basis of multi-layer architecture ; The alternative is the proxy architecture , Such as CORBA And service oriented architecture （SOA）. In this architecture , Information processing is not limited to a single machine , It is distributed on several independent computers .

There are several technical frameworks that support distributed architecture , Include .NET,J2EE,CORBA,.NET Web service ,AXIS Java Web Service and Globus Grid service . Middleware is an infrastructure suitable for supporting the development and execution of distributed applications . It provides a buffer between the application and the network .

It is in the middle of the system , Manage or support different components of distributed systems . Transaction monitor , Examples of data converters and communication controllers

Middleware is the infrastructure of distributed system -

The foundation of distributed architecture

The foundation of distributed architecture is its transparency , Reliability and availability .

The following table lists the different forms of transparency in distributed systems -、

transparency	describe
visit	Hide the differences between the way of accessing resources and the data platform .
Location	Hide resource location .
technology	Hide different technologies from users , Such as programming language and operating system .