You have been hired and an informatician at a state health depaarmtent. the health department is developing systems to recieve laboratory and clinical case reports from clinical settings, such as hospitals and doctor's offices. Your state has had an immunization registry in operation for several years and has been successful in getting cooperation from healthcare settings to send data to the system. Why is the system for reporting immunizations and receiving results at the health department so successful, particularly in comparison to the struggles you are observing as the health department sets up its laboratory and case reporting systems?