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Adrian I would say that the way you have defined a product, i.e., in terms of function, means that the example you give is the same product. However, it may not be that easy to define the function of a product. I tend to think that these sort of distinctions send us round in circles, so my question to you is why do you need to draw the distinction between new and redesigned product? Steve Adrian Espinosa Bautista wrote: > I hope everyone agrees with this statement: when a product is being > redesigned and keeps its function then we have a new version of the same > product. > Here it's my doubt: if the product keeps the function, but in the > redesign process changes the concept under which it works then is it a > new product or a new version of the same product? > > Let me use an example, when Mr Dyson developed his new vacuum cleaner > based on a cyclone it is a new product for him. Due to the success of > this product some competitors change the concept of the old vacuum > cleaners based on a bag to keep the dust, but the function is the same > (i.e. soak up the dust), is this a new version of the same product or a > new product? -- Professor Stephen AR Scrivener VIDE Research Centre Design Institute School of Art and Design Coventry University Coventry, CV1 5FB, UK Tel: +44 (0)24 7688 7477 Fax: +44 (0)24 7688 7759 Mobile: +44 (0)7789 590 228 Email: [log in to unmask]