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Subject: Re: [emergency] Mandatory fields when msgType=Cancel ?

The U/S/C triad is mandatory whenever the optional <info> block is 
present.  In most cases you're right, a Cancel won't have an <info> 
block at all.  However, some senders have expressed a desire to be 
able to annotate their Cancel messages with new <headline>, 
<description> etc. elements... e.g., in the case of an all-clear from 
a hazmat incident.  In that case, the U/S/C values should reflect the 
new, post-crisis situation.  (I've never been entirely satisfied with 
that arrangement myself, but nobody's come up with a simpler one.)

- Art

At 11:57 AM -0500 1/31/05, Bob Wyman wrote:
>In CAP V1.0 and draft V1.1, it appears that <urgency/>, <severity/>, 
>and <certainty/> are always required fields. However, it doesn't 
>seem to make sense that these fields would be required when the 
>msgType is "Cancel." Why is it useful to require that these fields 
>be present when a message is being cancelled? If they are present, 
>what should the value of these fields be when the msgType is 
>Typically, when one is canceling a message, one wants to say as 
>little as possible about the original - you just want it to go away.
>                         bob wyman

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