The first section of the book covers new modes of assessment. In Chapter 1, Kimbell (Goldsmith College, London) responds to criticisms of design programs as formalistic and conventional, stating that a focus on risk-taking rather than hard work in design innovation is equally problematic. His research contains three parts that include preliminary exploration of design innovation qualities, investigation of resulting classroom practices, and development of evidence-based assessment. The assessment he describes is presented in the form of a structured worksheet, which includes a collaborative element and digital photographs, in story format.

What does collaborative element mean?

Can you provide examples please?

Abbas RajabpourWhat does collaborative element mean?

The two words together like that can be paraphrased as "a component that involves some sort of cooperation". Beyond that, there is too much jargon in the passage to allow a layman to understand what the writer means.