Question 2 [10 marks] a) Product designer nowadays needs to consider multiple product attributes. This trend has led to the emergence of an interesting paradigm called design for X (DfX). Briefly describe the Design for Manufacturability (DfM) and Design for Serviceability (DfS). [4 marks) b) Product designer is preparing a conceptual design for a new electronic toy which is called "Plush Puppy Dog Walking Barking" (Figure 2). When squeezed, dog will shake tail, walk and bark. (i) Suggest and explain TWO DfX (except DfM, DfE & DfS) to be considered. [4 marks) Roby Berline Figure 2 Plush Puppy Dog Walking Barking (ii) Suggest TWO testing standards to be complied in European countries. [2 marks]