Strategic planning, intermediate planning, and operational planning should never overlap, because their boundaries are rigid rather than elastic.

Strategic Planning

The process by which an organization defines its strategy or direction and makes decisions on allocating its resources to pursue this strategy.

Intermediate Planning

The process of setting medium-term goals and determining the necessary steps to achieve them, usually positioned between strategic and operational planning.

Operational Planning

The process of planning specific day-to-day activities and resources required to achieve an organization's strategic goals, focusing on short-term actions and schedules.