Browse Items (6 total)
Sort by:
Spiral Diagram of Systems Engineering Activity
A diagram drawn by Warfield illustrates the iterative process used in systems engineering.
Flowchart of the ISM Process
This diagram was created by John Warfield to provide a visual representation of the Interpretive Structural Modeling process.
Illustrating Two Problem Situations
This figure, with hand drawn images by Warfield, was used in numerous presentations to explain the difficulty in solving complex problems.
Sigma-5 Diagram for Interactive Management
The Interactive Management process is comprised of 5 distinct components, seen in this diagram. The drawing is taken from 1985's "A Course in Generic Design."
Diagram of the Interactive Between Man and Machine in the Interpretive Structural Modeling Process
This 1973 sketch shows the interaction between humans and digital computers, to be used in the Interpretive Structural Modeling process devised by Warfield.
PENNSTAC: Fast Memory Switch Wiring Diagram
This one page excerpt is from a large binder of computing materials related to the PENNSTAC computer project at Penn State in the 1950's. Note that the diagram has been approved and initialed by Warfield.