Application Logic:
The traditional distributed computing architecture is almost similar to the SOA but they are different at many points like the SOA uses the XML to communicate ie to pass messages between each other thus reducing the dependancy on any particular technology, whereasin the distributed internet componet uses the properietary API to communicate with each other.
The distributed internet shows tight coupling as when they communicate a proxy stub is passed so that both can communicate with each other, this makes them stateful. The SOA does not have this problem, they does not require this stubs and can communicate by passing the XML messages.
Technology:
The traditional distributed computing were using the proprietary middleware like Corba, DCOM, because of this they have got some compatibility issues, this was correted in SOA by usin SOAP messages to communicate which eliminated the use of proprietary middleware.
Technologies:
The technology behind distributed internet architecture has cheanged over time. They uses the HTML, HTTp etc. With the time webservies came into picture, SOA asically uses XML data representation and it uses SOAP for communication, Many new things has been introduced like WSDL, UDDI etc.
Security:
When it comes about distributed system security plays major role. In traditional distributed computing many things has been implemented like encryption of data. In SOA we can include the security parameters in the SOAP header itself.
The traditional distributed computing architecture is almost similar to the SOA but they are different at many points like the SOA uses the XML to communicate ie to pass messages between each other thus reducing the dependancy on any particular technology, whereasin the distributed internet componet uses the properietary API to communicate with each other.
The distributed internet shows tight coupling as when they communicate a proxy stub is passed so that both can communicate with each other, this makes them stateful. The SOA does not have this problem, they does not require this stubs and can communicate by passing the XML messages.
Technology:
The traditional distributed computing were using the proprietary middleware like Corba, DCOM, because of this they have got some compatibility issues, this was correted in SOA by usin SOAP messages to communicate which eliminated the use of proprietary middleware.
Technologies:
The technology behind distributed internet architecture has cheanged over time. They uses the HTML, HTTp etc. With the time webservies came into picture, SOA asically uses XML data representation and it uses SOAP for communication, Many new things has been introduced like WSDL, UDDI etc.
Security:
When it comes about distributed system security plays major role. In traditional distributed computing many things has been implemented like encryption of data. In SOA we can include the security parameters in the SOAP header itself.
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