6-3-5 (C-sketch)
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What is 6-3-5 (C-sketch)?
Collaborative sketching, or C-sketch is a rapid way to generate and build upon the ideas that you and your team members have.
Why 6-3-5 (C-sketch)?
C-sketch is effective because it helps to provide different perspectives or insights into the solutions that are hidden from the sketcher.
The design team can produce over 100 ideas with the help of this method!
Procedure
Best Practices
Demo Video
This video gives you a walk-through on how to do a 6-3-5 (C-sketch), through a worked example of a Autonomous Vehicle Design Challenge.
This is an additional video on 6-3-5 (C-sketch)

Examples
Here are examples of 6-3-5 (C-sketch) done with various products.
References
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Shah, J.J., Vargas‐Hernandez, N.O.E., Summers, J.D. and Kulkarni, S., 2001. Collaborative Sketching (C‐Sketch)—An idea generation technique for engineering design. The Journal of Creative Behavior, 35(3), pp.168-198.
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Otto, K. N., and K. L. Wood. "Product design: techniques in reverse engineering and new product development." (2001).
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Tversky, B., & Suwa, M. (2009). Thinking with sketches. In A. B. Markman & K. L. Wood (Eds.), Tools for innovation: The science behind the practical methods that drive new ideas (pp. 75-84). New York, NY, US: Oxford University Press.
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Teo, K., Wee, Y., Swee, A., Altybayeva, A., Gopal, M., Kamiso, N., Foo, D., Lauff, C., Wood, K.L., “Design Innovation (DI) Learning Modules,” SUTD-MIT International Design Centre (IDC), SUTD, Singapore, idc.sutd.edu.sg, 2018.