You might be wondering what BPMN means. It is probably best to have it explained by the official website:
"A standard Business Process Model and Notation (BPMN) will provide businesses with the capability of understanding their internal business procedures in a graphical notation and will give organizations the ability to communicate these procedures in a standard manner. [...] This will ensure that businesses will understand themselves and participants in their business and will enable organizations to adjust to new internal [..] business circumstances quickly." BPMN Website: www.bpmn.org
The beauty of this notation is that you can freely access documentation and examples. Also, there is a bunch of free software around (apps you install on your computer or cloud software).
So let's start where you can find some more information about the language. You don't need to read any of the documents but if you want to learn more about it, that's a good way to start.
This document will be most useful if you just want to see some examples and have them explained. It goes quite into detailed use cases, so give it it a try.
When using BPMN for drawing your processes, you don't need to strictly follow the notation. However, looking up the meaning of each symbol might sometimes be helpful. This is the official normative documentation. It looks like a lot on first glance, however, it is more of a very detailed description that can be very useful if you really want to dive into this topic. It is like a little encyclopedia.
But don't worry, with the upcoming sections we want to show you how you can easily build the processes you need with some basic functionalities.
There is some free software around, for instance: