The quick answer,
WebService uses the SOAP specification to transfer data.  This is a
xml based specification that was created so people could expose their
API to others on a common ground.  (Its a specification so how its
actually implemented across Java, .NET, PHP, etc... can be different,
especially the charset encodings).
http://www.w3.org/TR/soap/

RemoteObject is a Adobe/Macromedia data transfer format.  It uses a
binary format created by Macromedia called Actiom Message Format
(AMF).  Because it is not wrapped in XML it is a leaner method of
transfering data, but its only specific to Macromedia.  

The nice thing about ColdFusion is that you can use CFC's and get a
WebService and RemoteObject compatible object with out change any code.

Its a quick answer, there is quite a few details I left out.  And you
can search the archives for a discusion of WebServices vs RemoteObject
that we had here last year some time.

Renaun


--- In [email protected], "Ryan Pieszak" <[EMAIL PROTECTED]> wrote:
>
> Greetings all,
> 
> I'm brand-spankin' new to Flex, and I'm really pumped to be learning it 
> as it seems very powerful.  I'm in the process of digging through some 
> sample apps, and I noticed that some use <mx:WebService and some use 
> <mx:RemoteObject... can somebody explain the difference to me?
> 
> Thanks..
> Ryan
>






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