Introduction: The importance of granting high specialty outpatient services calls for a diagnosis through process architecture in order to measure outpatient services deferral with key performance indicators and to evaluate the opportunity of scheduling appointments at high specialty hospitals.
Objective: To apply the process architecture model and key performance indicators in high specialty hospitals, in order to analyze outpatient appointment scheduling activities and to improve the quality of medical care and patient safety.
Method: Quantitative, sequential and deductive reasoning study, with correlational scope, to assess the degree of association between variables, and to establish and define key performance indicators, according to the importance of activities in medical services.