One reason is that PCI security requirements preclude use of the same HSM for both production work and development/testing work. So, a separate service is required for organisations moving their whole HSM capability to MYHSM.
Because of the way we have structured the Testing Service, the monthly cost is significantly lower than for the fully managed production service and the minimum contract period is short. This means that the MYHSM Testing Service is a very attractive option for organisations that need a short-term supplementary development and testing environment, want to try out their applications with the types of HSM supported by MYHSM, or want to validate their payment applications in the MYHSM service.