IaaS

IaaS stands for Infrastructure As A Service. This term covers a wide range of cloud services related to compute power, including but not limited to virtual machines, containers and services for compute intensive workloads.

ITSM

ITSM stands for IT Service Management. The term ITSM encompasses all processes and activities related to the design, creation, delivery and support of IT services. In some cases, ITSM focuses on IT technical support and helpdesk systems, such as Service Now and BMC Helix. An example is BMC Helix ITSM platform.