Object Transaction Services. A CORBA function used to manage the integrity and recoverability of resources used, possibly over a series of method requests on multiple recoverable objects. An extension of the X/Open DTP model.

Office of Toxic Substances

Opportunities To See ads in a campaign. Total (target audience) OTS of a television campaign is equivalent to the total number of (target audience) impacts delivered by that campaign. Average OTS is equivalent to average frequency (see Frequency).

see opportunity-to-see.

Overseas Trained Specialist

Overseas Trade Services - a joint operation of the DTI and the FCO and the Government's main deliverer of export promotion services

Open Training Services.

Out of service