Is the SIA in Crystal Server 2013 the same as the RAS in previous versions?

I am not an expert in BI/Crystal Server, so this may be a dumb question.

I recently migrated from Crystal Server 2008 to 2013.

I used CRS 2008 to display reports that were requested from an aspx form.

To handle the requests, we used the Report Application Server, which was available in the Central Configuration Manager.

In CRS 2013 I don't see the RAS in the CCM, I see a Server Intelligence Agent instead.

Are these services the same thing?

In other words, can the SIA perform the same functions that the RAS did? Or was the RAS moved somewhere else?

I checked the installation guide for CRS 2013 and I don't see any mention of the RAS anywhere.

Thanks!