A computer graphics system for draftspeople was developed and evaluated by Bell Telephone Laboratories. There was no significant difference found in drafting time between the manual mode and the computer system. The graphics system must have more capabilities than just drawing to be economical.
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References
1.
GabbeJ. D.LandwehrJ. M., “Results and Recommendations from the ADP Study and Relationships to Previous Work,”Bell Telephone Laboratories, June 10, 1977.
