For example, HL7 (Health Level Seven International) is a set of standards, formats and definitions for the exchange, management and integration of data that support clinical patients health care and the management, delivery and evaluation of health services. The HL7 standards, developed and promulgated by the healthcare IT standards-setting authority HL7 International, are the de facto standards in healthcare IT, although some HL7 users have called on Congress to create stronger statutory interoperability standards for healthcare IT . The functional EHR system model created by HL7 includes advanced healthcare decision support capabilities. Designed to drive national interoperability of healthcare IT systems. This template is designed to provide guidance to healthcare providers and healthcare researchers in preparing, acquiring, and transitioning electronic health records. The updated version of HL7 enabled interoperability between electronic patient management systems (PAS), electronic practice management systems (EPM), laboratory information systems (LIS), dietary, pharmacy and billing systems , as well as electronic medical records (EMR) or electronic health records (EHR)