Why is so much software so bad? There are lots of reasons. Writing good software is hard to begin with.* Big, custom projects are unique by definition, so they are sold as promises, not as finished products. Every vendor promises the same thing, so the one who promises to do it at the lowest cost often wins; when the project turns out late, bad, and over budget, too many executives have too much invested in its success to admit defeat. Consulting firms, which bill by the hour, make money by staffing projects with lots of people at relatively low cost, which is absolutely the wrong way to develop software; the productivity differentials in software are so vast that you can often get ten times as much output (of quality software) for less than twice the price, while a bad developer will do more harm than good to a project.