Registries are set up for collection and maintenance of information of people with similar conditions. These individuals must consent to involvement by being physically present or allow their data to be used in future research. On the other hand a repository is specifically for storage of identifiable specimens. They are collected, indexed and stored for future use in medical research or other relevant studies.
Therefore a registry must be very organised. It makes use of various study methods to collect data in a uniform way in order to analyse specified results of a group of people affected by an identifiable disease,