Design Pattern Categorization
In my early experiences of learning about design patterns, I personally found the following table a very useful reminder of what a number of patterns has to offer – it covers the 23 Design Patterns mentioned by the GoF. The original table was summarized by Elyse Nielsen back in 2004 and I’ve modified it where necessary to suit our discussion in this section of the book.
I recommend using this table as reference, but do remember that there are a number of additional patterns that are not mentioned here but will be discussed later in the book.
A brief note on classes