<https://larryullman.com/forums/index.php?/topic/3330-ch-7-strategy-patern-uml/#comment-20283>
<http://schema.org/author>
_:n2341ed886b9c45c5b91c02b71c2ead41xb3
<https://larryullman.com/forums/index.php?/topic/3330-ch-7-strategy-patern-uml/#comment-20178>