Purpose: The purpose of this study is to investigate the general characteristics (technical dimension, access and communication, and participation) and the general characteristics of the data set of Iran's open data portals.
Method: This is a descriptive survey study. A questionnaire with 28 criteria distributed among 30 Ph.D. students in Information Systems is based on the framework used in the research of Renata Máchová1 and Martin Lněnička.
Findings: The average score of the general characteristics of the open data portal with 33.22 is higher than the general characteristics of the data set with an average score of 24.87. The overall score of the quality of components of Iranian open data portals is 91.29. The highest score obtained among the portals is related to Iran's open data portal (108.1).
Conclusion: The results of comparing the average quality of Iran's open data portals show that the quality of these collections is at a low level. Comparing the average score of the quality of Iran's open data portals (108.1) with the three leading countries in the field of open data included Britain, India, and the United States (higher than 124) shows that Iran is not in a favorable position. It is necessary to pay attention to policy in the field of open data quality.