Question: It is common to represent network connections in IT systems as a cloud. (See, for example, Figures 2.6, 2.7, 2.8, and 2.9). The cloud is

It is common to represent network connections in IT systems as a cloud. (See, for example, Figures 2.6, 2.7, 2.8, and 2.9). The cloud is obviously an abstraction as we defined abstraction in this chapter. What does the cloud abstraction actually represent?

Figure 2.6

Server Client Request Request Service Service response response Communication channel

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