Alistair Cockburn on the question "When does Agile fail?"

The answer would have to look like:

• When does it work better to focus on process and tools, because focusing on individuals and interactions would fail?
  

• When does it work better to focus on comprehensive documentation, because focusing on working software would fail?
  

• When does it work better to focus on contract negotiation, because focusing on customer collaboration would fail?
  

• When does it work better to focus on following a plan, because focusing on responding to change would fail?
  

http://tech.groups.yahoo.com/group/agile-usability/message/5513