Related terms
An instance is a durable, potentially permanent, saved representation of a concrete class that is stored in the database. An instance corresponds to a row in the relational database, or to a record. An instance consists of properties and values, and some of these property values form a unique key to the instance.
An instance copied from the database into a clipboard page is called an open instance. Usually, an open instance is locked, so that only one requestor can update it at a time.