If we look at things in the world this way, it reminds me that everything can be dissected. This is also the basis of globalization manufacture. Nowadays 3D printing makes some integrated production possible. However, in terms of forms, almost everything is the combination of different forms.
So, when we are doing manufacture, we need to think of different resources of every parts. Also, we can make improvements through changing some parts of the object, rather than changing the whole thing.
The meaning of the object is connected both with the function and the appearance. For example, there used to be single glasses, but now there are barely single glasses. Also, the design changed a bit through time. However, as the function didn’t change a lot, people still call it “glasses”.