The Full Form of HPSM is Hewlett Packard Service Manager.

The HP Service Manager is one of the applications acquired by HP when it purchased Peregrine Systems in 2005. The application was originally known as PNMS (Peregrine Network Management System). After releasing the first version of PNMS, Peregrine Systems eventually added functionality such as Request Management, Call Management, and Change Management and rebranded the application as Peregrine ServiceCenter.

After the acquisition by HP, the application was rebranded as HP Service Manager and was included in the HP OpenView product suite. HP offers the application as a service desk solution that enables IT to work as a single organization, governed by a consistent set of processes to handle service delivery and support quickly and efficiently.