Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia.
OT(1) (Object Technology) See object-oriented programming.
(2) (Operational Technology) Using computers to control the physical processes of a business such as manufacturing, food preparation, chemical processing, etc. OT deals with sensors and instrumentation, which fall under the category of industrial control systems. Contrast with IT. See OT/IT integration, Internet of Things, process control and PLC.