Thanks Jennifer,

For example, suppose

I have a portal login button click is being tracked as event3, then I am going to do analysis.

So , as said by you my metric will be event3. But, what would be my dimensions . (page dimension and  time(month, day)) are only dimensions I can think of but is there any specific way to event analysis report? 

Also, I have one more query 

In launch perspective, I have been sending page , page Url, ecid , time stamp and previous page. Should , I need to think in reports perspective before capturing  values and firing the rules.  Thanks.