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Discussion Forum Unit 1 Hi Class, A passenger aircraft is composed of several millions of 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 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 within budget, whereas software is often not. Discuss what are, in your opinion, the differences between developing an aircraft, a bridge, and a word processor that would cause this situation. answer: There are several reasons that the cost and timeframe for the development of a bridge or aircraft is easier to predict than for a word processor. When Word for Microsoft was created, the developers had to come up with an entirely new product. On the other hand, aircraft and bridges have existed for some time. This means that there is an abundance of

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