Bad Smells in Extreme Programming
Smell
After product deliveries following early iterations, the customer has no complaints, but during the late iterations, the customer complains about many things from all iterations.
Solution
The customer must be “coached” sufficiently to provide honest and substantial feedback from the very beginning of the development process.
– Amr Elssamadisy & Gregory Schalliol, Recognizing and responding to “bad smells” in extreme programming