ERIC Number: ED372091
Record Type: Non-Journal
Publication Date: 1994-Apr
Reference Count: N/A
The Role of Planning in Simple Digital Circuit Design.
James, Carolyn M.; And Others
The role of planning in the design of digital circuits was studied in two experiments. One compared the planning-related activities of expert designers and beginning students of design, and the other looked at the effect on circuit-design processes of forcing students to construct a global plan. In experiment 1, five undergraduate students (novices) and two advanced graduate students with outside experience (experts) designed a one-bit full subtracter, taking several design constraints into account. Subject think-aloud protocols were videotaped and analyzed. Only one of the experts formulated a global plan before beginning the problem; undergraduate students did not formulate global plans but did exhibit local planning. More cross-component planning was conducted by students who were deemed more skillful by instructors. In the second experiment, 20 undergraduate and graduate students performed the same problem and a job-skill problem. Analyses suggest that at the group level there is no effect of planning on errors nor on attempts at optimization. Forcing formulation of a global plan does not mean that subjects are able to carry it out. (Contains 13 references.) (SLD)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Sponsor: Office of Naval Research, Arlington, VA.
Authoring Institution: N/A