Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the environment.
An operative person or thing.
That operates to produce an effect.
The method or practice by which actions are done.
The act or process of operating; agency; the exertion of power, physical, mechanical, or moral.
A procedure for generating a value from one or more other values (the operands);
A military campaign (e.g. Operation Desert Storm)
A planned undertaking.
A business or organization.
a function which maps zero or more (but typically two) operands to a single output value.
The method by which a device performs its function.
A surgical procedure.