client server architecture vs soa

CLIENT SERVER ARCHITECTURE vs SOA

	Client server architecture	Service Oriented Architecture
Application logic	Places the majority of application logic into client software.	The application logic resides completely on the service provider, sometimes provider can also be service requester.
Application processing	Bulk of processing(about 80%) is on the client side. Processing ratio is 80/20 (client/server)	Processing is highly distributed. No fixed processing ratio
Technology	Visual basic and powerbuilder ,c++,oracle Sybase at the backend	Web technologies(HTML,CSS,HTTP) and  XML with SOAP messaging framework
Security	Security controlled within client executable, OS level security can also be incorporated.	WS-security framework
Administration	Larger maintenance cost  due to distributed application cost	Less maintenance cost, if  web service need to be scaled to large  group then it incurs large maintenance cost