Paragraph 2.3: C box of the Delft Design Guide, for Industrial Design, TU Delft (http://ocw.tudelft.nl)

C-Box What Is a C-Box? We use a C-Box to generate an overview from a Keywords multitude of early ideas. The C-Box is a 2 x 2 Matrix. Clustering Two axes are determined that represent criteria Evaluation according to which the ideas are evaluated. In a Intuitive C-Box usually the criteria ‘innovativeness’ (for the Brainstorm users) and ‘feasibility’ are used. A C-Box has four Idea selection quadrants based on these axes. You are able to judge quickly whether ideas are immediately feasible or not, and whether they are highly innovative or not. fig. 2.59 Example of C-Box (from student report) A C-box is commonly used in a brainstorm workshop in order to judge the numerous ideas that are Expected Outcome generated in such a workshop. This method also The outcome of a C-Box is an overview of the early works effectively when you are eager to drop highly ideas, clustered in four groups based on criteria set to innovative ideas. This method could also be seen as the axes of the C-Box. Effectively, you have created a a first cluster activity of early ideas. However, the first rough distinction between ideas in four groups. clusters are predetermined by the axes you choose. It is possible to vary the meaning of the axes, for Possible Procedure future example ‘attractiveness’ and ‘functionality’. 1 Create two axes (innovativeness and feasibility) on a technology large paper and construct the 2 x 2 C-Box with those When Can You Use a C-Box? two axes, for example using Scotch tape on a wall A C-Box is commonly used in early idea generation, surface. present in case of a surplus of early ideas (for example 40+ functionality: one end is the familiar, the other end technology ideas) generated in a brainstorm session. represents highly innovative. feasibility: one end is not feasible, the other end present use futuristic use How to Use a C-Box? represents immediately feasible. Starting Point 2 Make sure all ideas are written down, or drawn on a The starting points of a C-Box is a multitude of early small piece of paper, for example on a post-it or an fig. 2.58 C-Box extended (from PO3 course 2008-2009) ideas (40-60 ideas). A5/A4-size paper. Delft Design Guide | Part 2 | Decision and Selection | C-Box – 2.3

Delft Design Guide | Part 2 | Decision and Selection | C-Box – 2.3 How to C-box familiar innovative familiar innovative idea idea yes... feasible feasible idea idea idea feasible feasible but... idea if... idea idea idea idea idea idea not idea idea not idea idea 40-60 early ideas make discuss and place the ideas select promising 2 x 2 matrix review in one of the ideas and drop ideas four quadrants bad ones 3 With a group, review and discuss the ideas, and place the ideas in one of the four quadrants. 4 Make sure that ideas in one quadrant are situated closely to the criteria they meet best. Once all ideas are placed in the C-Box, a first overview is created, and following steps can be made. These steps consist of working out the most promising ideas and dropping the bad ideas (not innovative and not feasible). References and Further Reading Tassoul, M. (2006) Creative Facilitation: a Delft Approach, Delft: VSSD.

Paragraph 2.3: C box of the Delft Design Guide, for Industrial Design, TU Delft (http://ocw.tudelft.nl)

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Paragraph 2.3: C box of the Delft Design Guide, for Industrial Design, TU Delft (http://ocw.tudelft.nl) Presentation Transcript

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