This study analyzes the chronic disease management, which is a core business of the public health centers, and grasps the functions of the information system that users need.

It is conducted by analyzing work flows in two public health centers that using two different health information systems, Posdata system and Daeryun systems. We also performed detailed interview and discussion to formulate the functionality for the information system in the future.

Both two health information systems currently used at public health centers emphasized hypertension, diabetes mellitus and hyperlipidemia as major target disease. They used information systems as a tool of case registration, assessment, reporting, consultation and education and patient care. But functionality of current systems supports only a part of the whole system and manual data input using excel program was still applied. The current information system is just inputting the data of manual works in computer and many of the functions are not used and still there are many duplicate and manual works. Two major problems of information systems in Korean public health centers are lack of standardization in the business process and reporting, and the current system does not support current functionalities.

We found that management of the chronic disease is to be more important work for the public health centers in the future. The future direction of the work process of the management of chronic disease would be upgrading the current functionality as well as new functionalities. Better linkage with direct care system and interoperability with national electronic health records system are new demands.