Re: [syndication] SOAP meets RSS

[Dan Brickley <daniel.brickley@bristol.ac.uk>]

Hi Dave,

On Sat, 6 Jan 2001 dave@userland.com wrote:

> Most aggregators scan for changes once an hour, but in some 
> situations we want to know immediately when a channel has changed. 
> 
> For example, we include "RSS Boxes" on several pages on our sites at 
> UserLand. When an editor routes a item to a box, we want the news to 
> be displayed immediately, but we don't want to read the RSS channel 
> on every hit. 
> 
> Notification makes it possible to always be current yet conserve 
> bandwidth and server cycles.
> 
> More info here..
> 
> http://www.thetwowayweb.com/soapMeetsRss

Interesting...

How would you distinguish the RSS case from the general problem of 
caching and change notification for Web content? Would you propose a
SOAP-based solution to the broader case of wanting to know straight away
about changes to arbitrary Web-accessible chunks of data (images, audio,
markup etc). Normally one would try to retrieve all this via HTTP caches
to avoid hammering the original server; do you reckon it would it make
sense for Web caches to use SOAP or similar to stay more up to date?

Dan