Manokaran M

P Diagram: P Diagram is a tool, used to frame or define the signal inputs and indented signal output along with the control factor and noise factor for the product/process. P diagram consist of signal (process input), Control factors (design parameter), Noise factor (uncontrolled noise), Response (functional output to customers) and errors (unintended outcome). P diagram for new product development: In new product development, the input (S) (Customer needs) and output (R) parameters (functional and measureable requirements) are identified. Along with this, to meet the functional requirements, completely new design or modification in existing design can be identified. Parameters which will be controlled by the product designer called control factors (C) to be determined. Factors which cannot be controlled by the product designer called noise factor (N) to be identified. Both control factor and noise factor will influence the product output. Where, the control factors can be controlled by product designer and the noise factor is uncontrolled by product designer. The influence of noise will increase variation between input and output. By maintain a proper interaction between control factor and noise factor will reduces the variation between input and output.