The process approach is a management strategy. When managers use a process approach, it means that they manage and control the processes that make up their organizations, the interactions between these processes, and
the inputs and outputs that tie these processes together. It also means that they manage these process interactions as a system. The process approach considers the interaction between these processes, and the inputs and outputs that tie these processes together. The output of one process becomes the input of another.
For example, the production or manufacturing can be considered as a process. You can define what are the inputs for the process, e.g. raw materials, energy, people, work instructions, etc. and then you define the set of activities within the process. At the end you define the outputs, such as the product, scrap, waste, etc. This should be defined for every process in the organization, as well as the interaction and sequence of the processes, for example, the output of the design is the input for the purchasing and production process, the outputs of the production process is input for warehousing or distribution process.