Heathrow's T5 and technology project management

I have been trying to follow the problems in the new T5 terminal at Heathrow Airport. There are small project management problems and there are big ones. Ours are modest. On the scale of big, you have T5 which apparently included 400,000 hours of software development (that’s a lot of lines of code!), a full year of testing and a full year of training. Yet its open was a technology disaster.  

Why is software still so hard?

“Software has been and will remain fundamentally hard,” says Grady Booch, in a Computerworld interview October 29. Booch is “Chief Scientist” at IBM's Rational software division.