Goal of decomposable production system

The main goal of Decomposable Production System is to replace a problem goal by set of sub goals .If the sub goals are solved then the main goal is also solved

Explaining problems in terms of decomposable production system allows us to be indefinite about whether we are decomposing problem goals or problem states.

Knowledge of the problem domain:

For efficient working of AI systems, good problem knowledge is required. This knowledge can be subdivided into three categories.

1. Declarative Knowledge
2. Procedural Knowledge
3. Control Knowledge
   Declarative Knowledge
   Declarative knowledge is knowledge about a problem that is represented in the global database. Declarative knowledge includes specific facts.
   Procedural Knowledge
   Procedural Knowledge is Knowledge about a problem that is represented in rules; general information that allows us to manipulate the declarative knowledge.
   Control Knowledge
   Control knowledge is the knowledge about different processes, structures and Strategies used for coordinating the entire problem solving process.