Best way is if you got access to SAP system
Steps:
Used SWDD to find all the standard WF template ? If there is no standard template available ?
Use the transactions you want develop WF after enabling event trace ? so that you can know which objects / events are publised ?
If none of the above are there you have to do custom worflow * add custom events.
for Specific WF examples / techniques use WFVER* in SWDD you will get all the examples.