Some years ago, IBM released a document which purpose was to create flowcharts in a standard format. These could be used to document things in a company/organisation. This document was X20-8021-2, or simply the "Flowcharting Worksheet". I have managed to implement this worksheet now and integrated it into the new JLink library (based on the new API). Developers may be interested to have a look at it.
This code will hopefully be released later tonight for people to peruse.