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Evaluating a Rubric for Assessing Constraint-Based Solid Models

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2016 ASEE Annual Conference & Exposition


New Orleans, Louisiana

Publication Date

June 26, 2016

Start Date

June 26, 2016

End Date

August 28, 2016





Conference Session

Assessment Within Engineering Design Graphics

Tagged Division

Engineering Design Graphics

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Paper Authors


Theodore J. Branoff Illinois State University

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Dr. Branoff is a professor and chair of the Department of Technology at Illinois State University. He taught engineering graphics, computer-aided design, descriptive geometry, and instructional design courses in the College of Education at North Carolina State University from 1986-2014. He also worked for Siemens-Switchgear Division and for Measurement Group, Inc. Dr. Branoff's research interests include constraint-based solid modeling strategies and spatial visualization abilities in undergraduate students. He has conducted CAD and Geometric Dimensioning and Tolerancing workshops for both industry and education professionals. Dr. Branoff served as President of the International Society for Geometry and Graphics from 2009-2012. In 2013 he was elected into the Academy of Fellows of the ASEE, and in 2014 he received the Distinguished Service Award from the Engineering Design Graphics Division of ASEE. In April of 2015 Dr. Branoff received the Orthogonal Medal for distinguished service in graphic science from the Technology, Engineering & Design Education faculty at North Carolina State University.

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Kevin L Devine Illinois State University

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Kevin is the Program Coordinator for the Engineering Technology major at Illinois State University. His primary teaching assignments are in engineering graphics, industrial robotics, and CNC programming/machining.

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Josh Brown Illinois State University

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As the tools for creating virtual models have evolved, engineering graphics educators have continued to adjust their methods for accurately and consistently evaluating students’ modeling strategies. Some of these methods include using concise rubrics for evaluating models, developing activities where students can evaluate their own models, and using automated electronic evaluation tools. One of the main challenges has been developing a method that clearly informs students about how their models will be evaluated, provides a valid and reliable tool for assessing design intent, and allows faculty to evaluate models in a timely and consistent manner.

During the Fall 2013 semester, a study was conducted to examine the effectiveness of a rubric for evaluating constraint-based solid models. The rubric was created after studying conceptual frameworks and other research related to evaluating constraint-based CAD models. Since only one researcher evaluated the models in this study, it was recommended that a study be conducted where multiple experts evaluated the same models using this rubric.

During the Fall 2015 semester, three faculty experts in constraint-based modeling used the same rubric to evaluate a representative sample of models created by students in an introductory engineering graphics course. This paper will present literature related to evaluating constraint-based solid models and inter-rater reliability, describe the methodology and results of the study, and provide recommendations for further research related to evaluating constraint-based solid models.

Branoff, T. J., & Devine, K. L., & Brown, J. (2016, June), Evaluating a Rubric for Assessing Constraint-Based Solid Models Paper presented at 2016 ASEE Annual Conference & Exposition, New Orleans, Louisiana. 10.18260/p.26747

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