Here I share some little quick videos that I recorded for posting them to Twitter. They are about topics related to Hexagonal Architecture
See how elements of a classic MVC web application matches with the ones of a hexagonal application.
In an hexagonal application, test cases are drivers that need access to driven actors. This can be done directly (Back Door Manipulation Test) or through the hexagon API (Round Trip Test).
This video illustrates the steps recommended by Alistair Cockburn to develop an hexagonal application from scratch, until you finally have the hexagon with all the adpaters it needs.
Hexagons are so easy to draw that we can draw them everywhere. Drawing one inside another is not correct though. On the other hand, we can draw hexagons communicating with others in a network. You can see it in this video. Take a look.