When to use it:

1. When you have a family of algorithms that do the same thing, but in a different way.
2. When you want decouple the client usage from the actual implementation.
3. Is a good alternative for a inheritance because it brings more flexibility horizontally in the Inheritage Tree.
4. Capture the abstraction into an interface, and the implementation into concrete classes.

References:

1. Youtube Christopher Okhravi
2. Github Qian Mo
3. Article Source Making
4. Article Guru

Sorting Agorithms in the example are taken from:

• https://programm.top/en/c-sharp/algorithm/array-sort/
• http://anh.cs.luc.edu/170/notes/CSharpHtml/sorting.html