Abstract: A system for providing differentiated service by using category/resource scheduling and the method thereof are provided. The system and the method are mainly used in the Internet environment, and apply computer executable programs executed at relay points or in a servo system to schedule the processes of external requests according to classified categories of and resources consumed by the external requests when the servo system receives the external requests from the Internet. The time points when individual external requests are released to the servo system to be processed are determined by the category weight corresponding to each external request, the proportion of resource consumed by each external request, and the capacity of available resources in the servo system.

Abstract: A system and a method of request scheduling for differentiated quality of services at an intermediary are provided. An intermediary located between clients and a server is used to schedule requests from the clients in the Internet. The intermediary classifies the requests and decides resources required for each request according to the administrative policies. Then the intermediary decides the order and the time the requests being transferred to the server by the size of the responses corresponding to the requests, window control and server loading. Therefore, the system is transparent to clients and servers and is capable of high compatibility with other systems.