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Question: A passenger aircraft is composed of several millions of individual parts and requires thousands of persons to assemble. A four-lane highway bridge is another example of complexity. The first version of Word for Windows, a word processor released by Microsoft in November 1989, required 55 person-years, resulted into 249,000 lines of source code, and was delivered 4 years late. Aircraft and highway bridges are usually delivered on time and below budget, whereas software is often not. Discuss what are, in your opinion, the differences between developing an aircraft, a bridge, and a word processor, which would cause this situation.Answer: In my opinion, the differences between the development of a passenger aircraft, a four-lane highway bridge, and the first version of Word for Windows are that aircrafts and the bridges are usually just a revision of already existing ones. While, the first version of Word was unprecedented, making it an original piece of software. Since, it was an original program, the programmers were unable to use actual