Effectiveness of using CADD (Computer-Aided Design Drafting) to learn engineering design graphics

Thesis/Dissertation · Thu Jan 01 00:00:00 EST 1987

OSTI ID:7002247

Bertoline, G R

One commercial CADD software and one educational CADD software was compared to the use of traditional tools. Engineering-graphics students were divided into three groups. The control group used traditional tools for all their drawings. One experimental group used a commercial CADD software to supplement hand tools and one group used an educational CADD software to supplement traditional tools. These groups were then post-tested using a standardized drafting test. The main findings were: (1) There was no significant difference in the learning of engineering graphics as measured by the post-tests. Supplementing traditional tools with CADD is effective for teaching engineering design graphics. (2) Using CADD for detail drawings such as simple orthographic drawings, sections, and dimensions could be produced in approximately the same amount of time as using traditional tools. (3) It was found that the amount of time needed to solve descriptive geometry problems using CADD was prohibitive. The amount of time to solve some descriptive geometry problems was two or three times greater using CADD versus traditional tools.

• Research Organization: Ohio State Univ., Columbus (USA)
• OSTI ID: 7002247
• Resource Relation: Other Information: Thesis (Ph. D.)
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COMPUTER GRAPHICS
ENGINEERING DRAWINGS
COMPUTER-AIDED DESIGN
GRAPHS
COMPARATIVE EVALUATIONS
GEOMETRY
DIAGRAMS
MATHEMATICS
420000* - Engineering
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)