Derive at least four concept designs to satisfy the given specification. Use short written descriptions and simple sketches to illustrate your ideas. Show evidence of the use of the following techniques: • brainstorming • synectics • morphological chart. 2. Use the weighted objective method to select your best solution from any four of the concept designs. 3. What other information would be required to be able to write a more complete Product Design Specification? (Use an objective tree to clarify and expand upon the vague brief given.) 3 Teesside University Open Learning © Teesside University 2011 (Engineering) Case Studies Choose ONE of the following. (a) As a keen, but economically challenged, cyclist you need a means of carrying two bicycles whilst travelling between destinations on a touring holiday in your small car which has a tow bar fitted.