The purpose of this paper is to define key terms associated with electronic health records and provide a necessary guideline for understanding the need for improving the quality of electronic health records as identified and discussed by the Industry Connect Work-group on Data Quality of Electronic Health Records. Specifically, defining the terms associated with the incompleteness of electronic health records. In addition, the paper provides a brief guideline toward further exploration of problems associated with the quality of electronic health records. It is believed that the documentation of discussion on these topics will instigate further exploration of the challenges associated with the quality of electronic health records.