IETM – An interactive Electronic Technical Manual (IETM) is a Technical Manual (eg. Maintenance, user, training, operations, etc.) prepared or authored in Digital forum on a suitable medium, by means of an automated authoring system, designed for electronic screen display to an end-user.

IETP – An IETP is built on the outlined functionality that is described in S1000D Matrix. This specification was initially developed by the Aero Space and defence industries association of Europe (ASD). S1000D Jointly Produced by the following Organisations, their members and customers.