Workflows...Event Linkage doubt

Hi pple,

Good Morning.

Well I got doubt in Event Linkages.

I would like to know the difference between...

1) Activation of Event Linkage in Workflow Builder-Basic Data-<b>Start Events Tab-Activate Event</b>.

2) Using the Transaction <b>SWETYPV</b>.

Please help me in knowing the difference between these two.

Regards,

Raja Sekhar