PaperCAD: A System for Interrogating CAD Drawings Using Small Mobile Computing Devices Combined with Interactive Paper

Table 9

Equation Editing.

Event	Correct	Incorrect
New term correctly interpreted	38
Did not complete before timeout (U)		1
Did not realize cross-out failure and continued to write a new term (U)		1
Misinterpreted (S)		15
Total	38	17

U: user error; S: system error.