It is essentially a reactive system that comes into play after the damage is done, after the crimes are committed.

Executives at icontact.com say their system is proactive, compared with competitors' reactive systems.

They have learned that hostile people often have a more reactive sympathetic nervous system than do others.

These cover large parts of the design flow of reactive systems, from specifying to implementing.

A reactive system is a system that responds (reacts) to external events.

For example, a light consisting of a bulb and a switch is a reactive system, reacting to the user changing the switch position.

A most important type of reactive systems is of interactive systems.

Esterel is a synchronous programming language for the development of complex reactive systems.

"It is this reactive system that irked us."

This modified equation can be used not only for reactive systems, but for population balances such as occur in particle mechanics problems.