So that is a pretty big topic. Can you narrow it down a bit? Are you comparing an older version of BPM/BAW to a more current one? Each new version of BAW seems to include several new features as well as enhancements to add back some of the older Desktop Editor/Process Center functionality that we might have been missing.
There is a ton of information available online and it can be a bit overwhelming sometimes.
Here is a link to some of the latest documentation:
https://www.ibm.com/support/knowledgecenter/SS8JB4_19.x/com.ibm.wbpm.workflow.main.doc/kc-homepage-workflow.html
I hope that helps a bit and I'll be happy to answer a few specific questions if you post them.
Rob Robinson
Apex Process Consultants
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William Robinson
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