Final answer:
Management by Objectives (MBO) is a strategic management model that clearly defines what is to be accomplished and how, with achievable and appropriate objectives set for organizational members.
Step-by-step explanation:
In simplest terms, the concept that tells managers what is to be accomplished and how it is to be accomplished is Management by Objectives (MBO). MBO is a strategic management model that aims to improve the performance of an organization by clearly defining objectives that are achievable and appropriate for each member. The main idea is to identify clear goals for personnel and to use those goals to monitor and assess the performance of employees.
MBO involves setting specific, measurable, achievable, relevant, and time-bound objectives with the active participation of both management and employees. This ensures that everyone is aligned on what needs to be achieved and understands the steps they need to take to accomplish these goals. In turn, this contributes to better planning, decision-making, and overall organizational performance.