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Systems Engineering by Dahai Liu

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Chapter 2

Systems Life Cycle and Design Processes

Let us start the chapter with a “rocks and bucket” story. There is a bucket, some big rocks just enough to fill it, some small stones, some sand, and water. Let us first fill the bucket with big rocks. Do we still have space? Yes, so we put the small stones around the big rocks in the bucket. Now is it full? We still have some room for some sand; after putting the sand in, is it full? No, we can still put water in the bucket: now the bucket is full. Now ask yourself: What can you see from this story? Someone might say that you can always have room for smaller things. While this might be true to some extent, for us systems engineers, the point we get from this story is that for us to fit all the ...

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