I loved this post. Educational as always. However, if I may add a minor tangent with regards to the class diagrams.
We want to also show the visibility of the attributes and the methods. So in your example, we would have append a +, - or # depending on whether the attribute/methods is public, private or protected respectively.
+name => name is a public attribute
-age => age is a private attribute
#make_sound() => make_sound is a protected method
This typically helps the transition from design to implementation easier.
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I loved this post. Educational as always. However, if I may add a minor tangent with regards to the class diagrams.
We want to also show the visibility of the attributes and the methods. So in your example, we would have append a
+, - or #depending on whether the attribute/methods is public, private or protected respectively.This typically helps the transition from design to implementation easier.