Interactive Electronic Technical Manuals (IETMs)

The Department of Defense (DOD) has invested heavily in developing Interactive Electronic Technical Manuals (IETMs). There is an excellent article on one of their sites. It outlines the features and benefits if IETMs, but also defines the five standard classes of IETMs. Here is an exerpt:

"Interactive Electronic Technical Manuals allow the user to locate required information faster and more easily than is possible with a paper technical manual. IETMs, when designed to the DoD IETM Specifications, are easier to comprehend, more specifically matched to the system configuration under diagnosis, and are available in a form that requires much less physical storage space than paper. Powerful interactive troubleshooting procedures, not possible with paper technical manuals, can be made available using the intelligent features of the IETM display device.
One study (Nugent, et at. 1987) indicated that maintenance technicians using a computer-based electronic document with aritifical intelligence assistance on troubleshooting completed tasks in less than half the time it took those with paper manuals. Even novices, using the electronic job aid, could troubleshoot 12 time faster than experienced technicians using paper manuals." (emphasis mine)

https://www.spider.hpc.navy.mil/index.cfm?RID=TTE_OT_1000013