Types of Production Systems

 The following are the types of production systems.

Forward Production Systems:

1. A Production system in which starting from an initial state moving towards the goal state is termed as Forward Production Systems.

Backward Production Systems:

1. A Production system in which starting at goal state and tracing back towards initial state.

Specialized production systems:

 There are two types of Specialized Production systems they are

1. Commutative production system
2. Decomposable Production System

Commutative production system:

A production system is said to be commutative if it satisfies the following property

1. Each member of set of rules applicable to D is also applicable to any database produced by applying an applicable rule to ‘D’
2. If the goal condition is satisfied by ‘D’ then it is also satisfied by any data base produced by applying any applicable rule to ’D’.
3. The database that results by applying to ‘D’ any sequence composed of rules that are application to D is invariant under permutations of the sequence.