HI,

One more thing i learnt yesterday in discussion with Servicenow that Asset management is mandatory for HAM. meaning HAM sits on top of HAM.

So without ITSM Asset management we cant use HAM.

When i say automation workflow it means we have few new flows which will get triggered automatically when asset approaches out of warranty, retirement,etc. so we have automatic task creations. Also we have asset normalisation which was not part of the ITSM Asset management. 
other automation example is for disposal of the asset, it is triggered automatically.

Thanks,
Ashutosh