Rigid management is a work-centered management model, emphasizing rules and regulations. It manages enterprise employees by means of system restraint, discipline supervision and reward and punishment rules. It is embodied in the gradual improvement of a series of management and principle systems. It requires that in the actual management activities, everything should be done according to the rules, regardless of feelings, focusing on efficiency and performance, forming a situation in which everyone is equal before the system.

Operation plan refers to the plan of ten days, weeks, days, classes, months and below. It is compiled according to the requirements of the annual and quarterly plans of the enterprise and the specific conditions of each unit during the planning period. It is the continuation and concretization of annual and quarterly plans, and it is a powerful tool to organize the daily production and business activities of enterprises and ensure the realization of annual and quarterly plans.

Each year's professional plan should prepare corresponding short-term business plans, such as monthly sales plan, production and operation plan, monthly equipment maintenance plan, monthly material purchase plan and monthly financial revenue and expenditure plan.

The difference between rigid management and flexible management;

Rigid management refers to "taking rules and regulations as the center" and managing employees by means of system constraints, discipline supervision, reward and punishment rules and so on. This is a common management model in the 20th century, such as the famous Taylor management model. Taylor's management theory regards people as "economic man" and "appendage of machine", emphasizing organizational authority and professional division of labor.

Flexible management refers to the "people-centered" personalized management based on the common values and cultural spirit of enterprises. It is based on the study of people's psychology and behavior laws, and in a non-mandatory way, it produces a potential persuasion function in employees' minds, thus transforming organizational will into personal conscious action.

The difference between rigid management and flexible management can be further extended, extending two different styles of management: one is efficiency management and the other is effect management. Efficiency management emphasizes doing things correctly, but also emphasizes the way and process of doing things, and how the whole system can operate efficiently in the existing process. In management science, a new management mode is put forward, called effective management, called "doing the right thing", which emphasizes the result rather than the process.