You should also account for scale. The City of New York employs about a quarter of a million people, which is around the same size as General Electric or GM, w

You should also account for scale. The City of New York employs about a quarter of a million people, which is around the same size as General Electric or GM, worldwide, performing a wide range of job functions. Also: the particular system under development included hand scanners, so you should include developing for that.