System Architect vs Application Architect

[mark antony]

What is the difference between a System Architect/Architecture and Application Architect/Architecture?
Does system architecture mean physical architecture(deployment diagram)?

Thanks.

[Ali Reza Hosseini]

from my point of view a system architect mainly has to care about
infrastructure and server components and their relationships
and connections ( Machines + Network + OS + Serversystems ).

an application architect has to care about the application
components and their relationships and their distribution
(right decomposition of an application into components + using patterns +
building prototypes + place components along the existing infrastructure)

actually, these both skills overlap in some areas and a
cooperation between them is essentail (e.g. for sizing issues).