1. environment: refers to the physical, technical, organizational and cultural environment of medical service providers, such as equipment, space, time, staffing, management mode, etc.
2. Personnel: refers to all kinds of personnel involved in medical services, including doctors, nurses, pharmacists, managers, etc. , as well as their cooperative relationship and communication methods.
3. Process: refers to the health care activities and processes provided by medical service providers, such as clinical treatment, surgery, medication, etc. , as well as the regulations and standards of these activities and processes.
4. Equipment: It refers to the types, quality and uses of medical devices such as medical supplies and instruments, as well as possible failures and damages.
5. Materials: refers to the selection, quality, use and storage methods of medical supplies, medicines and other materials, including overdue, pollution and foreign body treatment. Fishbone diagram (also known as fishbone diagram or causal diagram) is a graphical tool to analyze the root of the problem and its relationship.