Metadata
Commonly referred to as "data about data," metadata describes and gives information about other data.
Handle
A handle is similar to journal-assigned DOI numbers. These persistent links are assigned by the repository and provide continued access to the record. The record handle should be included whenever referencing a repository item.
Item
An item in the repository is any file associated with a record. Items may be percieved as the original document or file around which the record is built.
Record
A record refers to the lowest level or organization in the repository. Records are built inside collections and contain information about the item(s) they hold.