Maryam Milani Fard - Researcher at the Anesthesia and Pain &Molecular and cell Biology Research cente, Faculty of Medicine Department of Anatomy, Iran university of Medical Sciences, Tehran, Iran.
Anita Amini - Master of Industrial Engineering-Management and Productivity, Health Systems Researcher, Firoozgar Hospital Clinical Development and Research Center
Masoumeh Shafie Aghol - Graduated in Associate Professor, Analytical Mathematics, Lahijan Azad University, Gilan, Iran

Introduction: Evaluation in health services has a long history. The application of quality standards to hospitals or other facilities first became common in the United States and gradually spread to other countries.Materials: Evaluation and inspection of health care services in the form of different approaches (ISO, superiority models, accreditation and peer group) are used voluntarily or compulsorily around the world and are gradually expanding. Root approaches to industries or sectorsHealth returns. There is a concern that all approaches should take into account the use of valid standards, quality improvement, transparency and public accountability.Discussion and Conclusion: All methods are dynamic and evolving, but the validity of some of them is faster. At the same time, their origins are different. There is a kind of convergence between them.

evaluation, Quality, Standard, health sector