>> So... you issue a command, and you receive a reply? And these are both 
>> formatted as XML?
> 
> Yes. Think of it like a procedure call between machines.

So it's a way of issuing server commands without needing a human to 
press the button?

>> Is the reply necessarily immediate?
> 
> In theory, no. In practice, yes.

Rather like the way HTTP responses are supposed to be "immediate"? 
(I.e., the browser hangs if it isn't.)

> Exactly.  I have a library to do just that, only it uses the REST 
> interface (which isn't really REST) to do so.

What's REST then?

> Also, http://console.aws.amazon.com/ lets you do it all from a web 
> browser, or so they just announced. I haven't tried it.

Yes, I noticed that. Currently only EC2 though. (?)

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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