During the past decades obsolescence has been assessed in various ways (Kaufman, 1989; Pazy, 2004; Rosen, 1975; Rothman & Perrucci, 1970; Van Loo, 2005). Kindly link any questionnaire which is open access.
Technological obsolescence is one of the primary reasons for product obsolescence. An effective strategy in dealing with technological obsolescence is that of “piggybacking.” Have a look on the attached file containing two different questionnaire: