Classical Planning

Classical planning is planning with instantaneous actionAn action with no duration, whose effects are realized instantaneously.s. You give the planner a starting stateA description of what is currently true in the problem., a goalThe condition you want to be true at the end of the plan., and the actions that can change the worldThe situation the planner is describing: what is true now, and what can change next., then ask it to find a plan.

Classical planning is the right fit when the order matters, but time does not. A package delivery flow is a simple example: the package starts at one place, it can only be loaded if the truck is there too, the truck moves, and then the package gets unloaded at the end. In classical planning, the plan is the sequence of actions.