The most important ones are the PUPS production system, an initial implementation of Anderson's theory, later abandoned; and ACT-RN, a neural network implementation of the theory developed by Christian Lebiere.
The most important ones are the PUPS production system later abandoned. The most important ones are ACT-RN. A neural network implementation of the theory is RN. This theory is developed by Christian Lebiere. An initial implementation of Anderson's theory is the PUPS production system.