Some architectures implicitly assume that sensing is a cheap operation. They sense often to update the system's view of the world. This is eager sensing. Other systems only operate their sensors when they think they need the value. This is advantageous when there is some cost to sensing, for example, an energy cost to operate the sensor, or the potential to betray the system's location in an actively hostile environment. This is lazy sensing.
Theo-Agent may have either eager or lazy sensing. The sensor data update policy is under direct control of the system's programmer. This gives Theo-Agents the ability to selectively focus their attention to the important and dynamic aspects of their environment, where reflexive response is desired.
Go to a discussion of this property for multiple architectures.