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A Decision Tree Based Methodology for Evaluating Creativity in Engineering Design.

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Frontiers in Psychology
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Summary

We developed a reliable method, the Decision Tree for Originality Assessment in Design (DTOAD), to measure product design originality. This tool effectively assesses creativity in engineering students and can be applied to various design challenges.

Keywords:
creative productscreativitycreativity measurementcreativity metricsdecision treeengineering design

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Area of Science:

  • Engineering Design
  • Creativity Measurement
  • Product Innovation

Background:

  • Existing creativity metrics lack effectiveness for assessing new product design originality.
  • A reliable method is needed to evaluate originality in engineering design concepts.
  • Assessing design innovation at the system level is crucial for product development.

Purpose of the Study:

  • Introduce and validate a novel method for assessing the originality of design concepts.
  • Provide a reliable and valid tool for measuring creativity in engineering design.
  • Demonstrate the applicability and utility of the proposed originality scoring method.

Main Methods:

  • Developed the Decision Tree for Originality Assessment in Design (DTOAD), a system-level focused scoring method.
  • Provided a full protocol including coder training and examples of scored concepts.
  • Validated the DTOAD using over 500 concepts from garbage collection system design and applied it to a new design problem.

Main Results:

  • The DTOAD demonstrated reliability and validity in assessing design originality.
  • Identified cross-sectional differences in creativity between beginning and advanced Mechanical Engineering students.
  • Showed longitudinal growth in creativity throughout the undergraduate curriculum, indicating curriculum influence.

Conclusions:

  • The DTOAD is a valuable tool for identifying differences in originality among student cohorts.
  • The method can be applied across diverse ideation procedures and design contexts.
  • The DTOAD offers a robust measure for evaluating creativity in engineering design and its educational impact.