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Now let's go back to the phases within a cycle.

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because I want to show you how they relate to traditional

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activities of software development. Because this is the first time that

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we talk about inception, elaboration, construction and transition. So we will

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know what they mean, in terms of the traditional software

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development. So I'm going to first discuss these relations and then

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I'm going to talk about each individual phase in further detail.

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So I'm going to start by representing the four RUP phases here

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with possible internal iterations. I1, E1 and E2, C1,

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C2, and so on. And just as a reference, this

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is the way in which time will progress. So we

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will start with inception and we will finish with transition.

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So what I'm want to do now is to show the

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actual, traditional, software development activities here on the left. And

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I also want to show you, using this diagram, how these

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activities are actually performed in each of the RUP phases.

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So, let's see what this representation means. Basically, what

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I'm showing here, is that requirements engineering actually starts in

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the inception phase. So, you can see the height

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of this bar as the amount of effort devoted to

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this activity in this specific phase. So you can

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see that requirements engineering starts in inception phase, is mostly

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performed in the elaboration phase, and then it continues,

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although to a lesser extent, throughout all phases up until

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the end of the transition. But the bulk is really

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performed here in the elaboration phase. Similarly, if we consider analysis

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and design, we can see that analysis and design are

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mainly performed in the elaboration phase. But a considerable amount of

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it also continues in the construction phase, and then it

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kind of phases out. So there's very little of that done

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in the transition phase. Looking now at implementation, you can see

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that the implementation happens mostly in the construction phase, which is,

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unsurprisingly, the phase that is mostly concerned with actual code development,

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as we will see in a minute. Testing, on the other

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hand, is performed throughout most phases, with, peaks in some specific

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point, for example, at the end of some iterations, like here

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and here. To conclude, we have the business modeling activity that

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happens mainly in the inception and a little bit in the

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elaboration phase and the deployment activity which happens a little bit

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throughout, but the bulk of it is really in the transition

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phase, which is actually the phase that has to do

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with deployment and then maintenance. So I hope this kind

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of high level view gives you a better understanding of

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what is the mapping between these new phases and, the

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typical software development activities that we are more familiar with.

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So to further this understanding, later in the lesson, I'm

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also going to talk about these specific phases individually. First, however,

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I want to spend a little more time discussing what happens

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inside each one of these iterations, just to make sure

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that we are all understand what an iteration is exactly.