The addition of 'T' in recent years stands for troubleshooting, and reflects its use in network operations environments.
The term is used to describe the collection of disciplines generally, as well as whatever specific software package(s) or functionality a given company uses to track these things.
Operations encompass automatic monitoring of the environment, detecting and determining faults, and alerting admins.
Maintenance involves upgrades, fixes, new feature enablement, backing up and restoring data, and monitoring the media health.
In NOC environments, OAMP and OAMPT are used to describe the problem management life cycle more and more - and especially with the dawn of Carrier-Grade Ethernet, telco terminology is becoming more and more embedded in traditionally IP termed worlds.
In this section group, you will find things like Daily Checklists, On-call and Shift rotas, Call response and ticket opening procedures, Manufacturer documentation like technical specifications and operator handbooks, OOB Procedures These are support procedures that are necessary for day-to-day operations - things like common passwords, equipment and tools access, organisational forms and timesheets, meeting minutes and agendas, and customer Service Reports.