Don't work.
They presupose your conclusion. You assume that biology is intelligently designed, therefore you try to prove this by applying engineering methodologies to biology. Unfortunetly you are bobbing for oranges.
Engineering theories are not applicable to biology because, even if they were intelligently designed at one point, they aren't subject to intelligent design today and therefore can't be expected to performe to some sort of man-made quality control standard.
This message has been edited by Yaro, 02-08-2006 11:38 AM