The SEIPS model is a systems engineering approach to patient safety that integrates human factors and healthcare quality models. It provides a framework for understanding the structures, processes, and outcomes in healthcare and their relationships. The model emphasizes the design of work systems to improve patient safety by considering the interactions between components such as the person, tasks, tools, environment, and organization. It also incorporates Donabedian's quality model, which links structure, process, and outcome. The SEIPS model goes further by specifying system components that contribute to medical errors and showing how design can influence outcomes. It also highlights the importance of balancing work systems to ensure safety for both patients and staff. The model is applied to various healthcare settings, including outpatient surgery, where it helps identify safety threats and plan interventions. It is used to assess work systems, processes, and outcomes, and to evaluate the effectiveness of system redesigns. The SEIPS model can be used proactively to guide system design and hazard analysis, or reactively to investigate patient or employee injuries. It also supports patient safety research by helping researchers identify predictors of safe or unsafe care and design effective interventions. The model emphasizes the importance of considering the entire work system, including the physical environment, tools, and organizational factors, to ensure safe and effective care. It also highlights the need for a balanced work system that considers the needs of all stakeholders. The SEIPS model is adaptable and can be applied to various healthcare contexts, making it a valuable tool for improving patient safety. The model is descriptive rather than prescriptive, providing a framework for understanding the different aspects of a work system and their interactions. It is important to recognize potential resistance to a systems approach and to gain support from key opinion leaders to ensure effective implementation. The SEIPS model is a comprehensive approach to patient safety that considers the complex interactions within healthcare systems.The SEIPS model is a systems engineering approach to patient safety that integrates human factors and healthcare quality models. It provides a framework for understanding the structures, processes, and outcomes in healthcare and their relationships. The model emphasizes the design of work systems to improve patient safety by considering the interactions between components such as the person, tasks, tools, environment, and organization. It also incorporates Donabedian's quality model, which links structure, process, and outcome. The SEIPS model goes further by specifying system components that contribute to medical errors and showing how design can influence outcomes. It also highlights the importance of balancing work systems to ensure safety for both patients and staff. The model is applied to various healthcare settings, including outpatient surgery, where it helps identify safety threats and plan interventions. It is used to assess work systems, processes, and outcomes, and to evaluate the effectiveness of system redesigns. The SEIPS model can be used proactively to guide system design and hazard analysis, or reactively to investigate patient or employee injuries. It also supports patient safety research by helping researchers identify predictors of safe or unsafe care and design effective interventions. The model emphasizes the importance of considering the entire work system, including the physical environment, tools, and organizational factors, to ensure safe and effective care. It also highlights the need for a balanced work system that considers the needs of all stakeholders. The SEIPS model is adaptable and can be applied to various healthcare contexts, making it a valuable tool for improving patient safety. The model is descriptive rather than prescriptive, providing a framework for understanding the different aspects of a work system and their interactions. It is important to recognize potential resistance to a systems approach and to gain support from key opinion leaders to ensure effective implementation. The SEIPS model is a comprehensive approach to patient safety that considers the complex interactions within healthcare systems.