Distributed Components In The Distribution System Study

In the process of developing MIS, there are some disadvantages in traditional C/S structure such as overload of Database Server, overabundance cost of system maintenance appeared along with the increase of system scale and application complexity. It is a effectual way to avoid these disadvantage to use the technology of distributed component. It can improve the whole treatment capacity and the ratio of performance to price and the scalable by encapsulating the complicated rule in the component and releasing them to different application server, which is especially important to the quickly increasing enterprise.This paper introduces fundamental knowledge of distributed component and analyzes and compares the popular component standard included the COM/DCOM & CORE A. We choose Jaguar CIS as the application server in the delivery system. Jaguar CTS is a kind of component transaction server of Sybase Corp. It supports many kinds of component model and network protocol, security mechanism. It can manage the component life circle and transaction. We can set up a cluster to improve the performance and reliability by using the name service. This paper introduces the key technology in the development delivery system of chain supermarket with distributed component using Jaguar CTS as the component transaction server.This paper mainly discuss the following problem in the design and development of distributed component in the main operation process of the delivery system:1. To use the component transaction management mechanism in order to ensure the coherence of the complicated operation process.2. To connect the Database through connection cache in order to reduce the load of Database and the number of connection.3. The inter-operation among different component.4. To create the secure connection between the client and application server to ensure the safe of data translation.5. To improve the availability of system with the cluster technology.6. To reduce the time spending of client accessing the component using the component instance pooling.This paper implements the component about making delivery operation plan and tests it in the lab.