Computational Grids are a new trend in distributed computing systems.In the dis- tributed environment every node has its own operating system, own resources, own processing speed, so the responsibility of communication between di¿erent platforms have been done by middleware.For this purpose, middleware takes the jobs from users and according to the job speci¿cation resource discovery has been done by middleware as a ¿rst step then assign the job to the particular resource, which has been discov- ered. So the middleware is responsible for the resource discovery, resource allocation and job will be executed successively in the grid environment. To reduce the load from the middleware & provide better facility to grid for job submission ,selection of best resource from all the available resources & advance reservation of resources are to be handled.This book proposes the approach, which is Handling Complex Use Scenario in Grid Environment.In addition to processor utilization, it is important to consider the waiting time, throughput, and response times of jobs in evaluating the performance of grid scheduling strategies. To handle use scenarios for best resource selection.