What is a good and bad design process?

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Across
  1. 4. primary individual or organization involved with the project, usually commissioned by them (6 letters)
  2. 5. defining aims to achieve a desired result (10 letters)
  3. 7. an ability to consider and understand others’ feelings and situations (7 letters)
  4. 12. a process, testing quality and effectiveness through close inspection and assessment (10 letters)
  5. 13. A process, repeating and revising designs to improve them (9 letters)
Down
  1. 1. a process, the fabrication of preliminary models to test and represent potential ideas (11 letters)
  2. 2. a systematic investigation to discover new knowledge or reach a conclusion (8 letters)
  3. 3. quick, rough drawing to illustrate initial ideas (9 letters)
  4. 4. a clear exchange of information between teams or individuals (13 letters)
  5. 6. organizations or individuals with an interest, involvement or concern regarding a project (13 letters)
  6. 8. A process, working together towards a shared objective (13 letters)
  7. 9. a process, assessing the usability of a product via the help of selected individuals (2 words, 10 letters)
  8. 10. A process, generating concepts in a creative way (8 letters)
  9. 11. a process, enhancing the quality by making small adjustment and improvements (10 letters)