At this practical, 3-day Erlang eXchange University Workshop you will learn the prevailing Erlang Design Patterns called OTP Behaviours. We will cover Erlang Design Patterns such as Generic Behaviours, Finite State Machines and Event Handlers. You will also learn how to develop systems using the Supervisor and Application Behaviours Patterns, so you can construct maintainable and fault tolerant software. Upon completion of this course, you will be able to extend it all, by devising your very own Behaviours.