Illustrates how current use of Quality Function Deployment (QFD) continues to stretch the bounds of applications and techniques. The ‘Best Practice’ elements of each of the highlighted QFD applications are the elements that contribute to the flexibility and success of this tool. In essence, ‘Best Practice’ could be defined as ‘what works best in this situation’. ‘Best Practice’ will vary depending on the application and the context - there is no ‘one size fits all’ in QFD.