What is Repository

This chapter introduces a model approach to long-term digital preservation of Electronic Health Record (EHR). The long-term digital preservation is an emerging trend in the environment of digital libraries. However, legal or business needs may cause the use of digital preservation strategies in different fields. This is the case of the EHR as part of the information system of a healthcare institution. After a reasonable space of time without activity, an EHR becomes a passive information unit. Consequently, this passive information unit remains safe in a separate information system where the main purpose is digitally preserving this information on a long-term basis. There are two appropriate methodologies, Trustworthy Repository Audit and Certification Criteria (TRAC) and a Reference Model for Open Archival Information System (OAIS). These methodologies can widely be adopted by health care organizations to preserve EHR in the long-term.