Soar - Long Term Memory

Description

• Soar's long term memory is a production system based on Ops5.
• Soar's productions have a set of conditions, which are patterns to be matched to working memory, and a set of actions to perform when the production fires.
• Conditions can match to all the current goals, problem spaces, states and operators on the context stack in working memory.
• Actions can only add elements to working memory. These elements are attribute/value pairs for some object (goal, state, operator or problem space).
• Actions can also add "preference elements", which indicated a (lack of) desire to choose a specific object for a slot in the current context stack.
• Soar performs no conflict resolution between competing productions. All productions which match the current working memory fire.