Scheduling in Service:

Any scheduling service mainly concerns with the selection of service order, and managing queue of service requests, example includes:

1. Scheduling service decides service order.

2. Also considers queries awaiting web-server.

Scheduling service can provide:

1. Different user's different qualities of service.

2. Fairness in the network under consideration.

Scheduling in service needs following requirement to satisfy in order to be efficient and exact it should be easy to implement.

1. Scheduling discipline ought to make the decisions once every few micro- seconds.

2. It must be implementable in a few instructions.

It must be fair in approach

(a)  It should have some performance bounds.