account for FIM Service MA

Experts,
I am going through FIM installation "http://technet.microsoft.com/en-us/library/hh332707(v=ws.10).aspx".

It is mentioned to create 'domain service account' for FIM Synch service, FIM Password reset portal, SharePoint service etc but for 'FIM Service Management Agent', just 'domain account'.

Is there any difference between 'domain service account' and 'domain account' or am i reading too much in between the lines?

Thanks,
Mann