Meaning – The term maintenance services, refers to one of the types of network services in system services control points (SSCPs) and physical units (PUs). Maintenance services provide facilities for testing links and nodes and for collecting and recording error information.
The technical meaning of maintenance involves functional checks, servicing, repairing, or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations.
A service provided to keep a product in good operating condition. One of the strong selling points for the rise of software as a service (SaaS) was that all program maintenance is provided by the vendor of the application.
Example of usage – “Computer maintenance is the practice of keeping computers in a good state of repair. A computer containing accumulated dust and debris may not run properly.”