It requires elimination of unnecessary steps and assurance of appropriate procedures. All work is a process. The details of organizational processes are important because they are the substance of organizational work that ultimately produces the results. If the details are wrong, the process is wrong. If the process is wrong, the results are wrong.
Quality requires attention to detail.
You cannot improve a process without data. And often the data yield surprises. Common causes of problems are inherent in every process and are not attributable to the worker. Special causes of problems come from exceptions to the normal process. Eliminating them requires detecting them as quickly as possible.