Design Process Overview
1.Clarify Objectives – Objectives tree method
  - Prepare list of objectives
  - Order the list
  - Draw the objectives tree
2.Establish user requirements
3.Identify constraints
4.Establish functions - Functional model
  - Create ‘black box’ model of the product
  - Break down overall function in sub-functions
  - Connect sub-function chains together
  - Define the system boundaries (Constrains)