1. A computer-implemented method, comprising: receiving, at a service process integration grid, a request to initiate one of a plurality of heterogeneous service process provider workflows executed between one or more service process provider information technology service management applications and one or more corresponding service process customer information technology service management applications; executing the requested workflow by: mapping each of a plurality of transactions of the requested service process provider workflow performed by the service process provider information technology service management applications to a transaction of a standard service process workflow of the service process integration grid, and mapping each transaction of the standard service process workflow to a corresponding transaction of a service process customer workflow performed by the corresponding service process customer information technology service management applications; wherein at least one of the transactions of the service process provider workflows or the service process customer workflow transfers ownership of the workflow between a service process provider and a service process customer.