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And even if we don't go to these extreme examples, I'm

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sure that you have all experienced

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software problems, typically manifested in what

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we call a crash. And that crash might happen while you're

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finishing your homework or that three-page long email that you were preparing

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for the last two hours. But why's it so difficult to

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build software, or better, why's it so difficult to build good software?

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And how can we do it? This is exactly the topic

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of this class. And the reason why software engineering is a fundamental

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discipline in computer science. To motivate that, in this class, we

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will study a set of methodologies, techniques, and tools, that will help

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us build high quality software that does what it's supposed to

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do. And therefore, makes our customers happy. And that does it within

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the given time and money constraints. So within the budget that

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is allocated for the software. Before

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jumping into today's software engineering techniques

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though, let me take a step back and look at how

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we got here, as I believe it is very important to have

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some historical perspective on how this discipline was

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born and how it was developed over the years.