SDD has no real track record. It's only a promise of a method. If you think it's waterfall again: Wrong. Everyone who phantasizes about "just"™ writing the p

SDD has no real track record. It's only a promise of a method. If you think it's waterfall again: Wrong. Everyone who phantasizes about "just"™ writing the perfect spec will be in for a rude awakening. The spec will change over time and your initial version will turn out to be very wrong.