Here's a short article on the evolution of process diagramming - "the death of flowcharts and swimlanes". Many companies have moved to this easier and more compact diagramming notation that is not proprietary to any software app. It works with pencil and paper but it reflects that we all work online collaboratively.
https://medium.com/@Q9ELEMENTS/the-evolution-of-process-diagramming-266f8a447aab
