System debugging, like astronomy, has always been done chiefly at night.

The hardest single part of building a software system is deciding precisely what to build.

System debugging, like astronomy, has always been done chiefly at night.

The Waterfall Model is wrong and harmful; we must outgrow it.

The critical thing about the design process is to identify your scarcest resource. Despite what you may think, that very often is not money. For example, in a NASA moon shot, money is abundant but lightness is scarce; every ounce of weight requires tons of material below. On the design of a beach vacation home, the limitation may be your ocean-front footage. You have to make sure your whole team understands what scarce resource you're optimizing.

Software work is the most complex that humanity has ever undertaken.

How does a project get to be a year behind schedule? One day at a time.