The model of the dmr table should have a formal index form as. This document is a device master record index for an in vitro diagnostic product. A lot of the documents are not in the device master record, but are referenced in the dmr as to where the document is located (document control office, engineering library,. The document defines four types of records that are important for medical device development and manufacturing: Dmr is maintained on the company computer network in a microsoft word table, excel or equivalent format.