Process design is the method of selecting and sequencing units for the desired physical and/or chemical transformation of materials. It is a critical element of chemical engineering and can be considered the summit of that field, bringing together all of its components. Process design can be the design of new facilities or the modification or expansion of existing facilities. It is distinct from equipment design, which is closer in spirit to the design of unit operations. Process design is also important in the business world, where it is a vital part of operations management. It involves understanding how work is done within an organization and then designing and implementing ways to improve it. The goal of process design is to create a process that is efficient and effective in producing the desired product or service. The process designer must consider many factors when creating the plan, such as the product type, the materials needed, the equipment available, and the workforce. Effective business processes must be scalable and capable of being replicated. Business process design consists of identifying and defining the problem, identifying inputs, outputs, parties, and procedures, mapping out the process, and testing the process.