Final answer:
The middle manager is engaged in operational planning, which focuses on specific actions and activities for short-term objectives.
Step-by-step explanation:
If a middle manager is preparing a quarterly plan and updating the operational procedures for the department, the manager is engaged in operational planning. Operational planning focuses on specific actions and activities needed to achieve short-term objectives.
Operational planning involves the day-to-day activities and processes that contribute to the overall objectives of an organization. It is concerned with the specific actions, tasks, and procedures that need to be carried out to implement the strategic plans of the organization. This type of planning is typically done by middle-level managers who are responsible for a specific department or unit within the organization.