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From "Peter Govind" <>
Subject RE: Advantage of SOAP against RMI ???
Date Tue, 05 Jun 2001 13:35:15 GMT

If you look at the web services articles around at the mo' they seem to 
paint a picture whereby a client app can access a multitude of web services.

Sure that's nice. Then again, in reality the call/invocation is a bit on the 
expensive side (ie take time) - even on one web service only. Things will 
definitely get worse once a particular client's 'request' (I use the term 
loosely here) requires invocation of methods from several different web 
services spread throughout the inter/intranet. Imagine the time the user has 
to wait before getting a response!

Let's not forget that XML processing does require some CPU cycle (ie waiting 
time) - this couple with Java (after 6 years and with availability of higher 
CPU power, still a bit on the slow side) does put a hefty baggage on the 
concept of one client using several web services.

Don't get me wrong, I think SOAP is a great idea. Just make sure you get as 
many stuff done for one single invocation .... and have a very patient 
target audience.

>From: Colin Saxton <>
>To: "''" <>
>Subject: RE: Advantage of SOAP against RMI ???
>Date: Tue, 5 Jun 2001 11:56:16 +0100
>One disadvantage that I have found with SOAP depends on the time taken to
>execute the SOAP envelope on the server!!
>You could have a call that could take some time and client will more than
>likely timeout!
>Keep in mind when performing tasks that could take over a minute to do them
>as part of a queuing algorithm. The server can then notify the client using
>a different protocol to HTTP...
>To summarise...SOAP over HTTP does not work well when time taken to execute
>the server process is lengthy...You can extend the client timeout but that
>in itself can lead to problems...
>-----Original Message-----
>From: Ralf Bierig []
>Sent: 05 June 2001 10:57
>Subject: Advantage of SOAP against RMI ???
>Which advantages does SOAP provide compared with RMI?
>Whats with SOAP <-> CORBA ??
>Whats are the advantages of SOAP against RMI and whats
>are the disadvantages?
>Thanks, in advance!
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