Re: [earlywarning] [CAP] Definition of Warning Categories
creed@opengeospatial.org Wed, 15 July 2009 16:45 UTC
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Date: Wed, 15 Jul 2009 12:44:24 -0400
From: creed@opengeospatial.org
To: Hannes Tschofenig <Hannes.Tschofenig@gmx.net>
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Cc: earlywarning@ietf.org
Subject: Re: [earlywarning] [CAP] Definition of Warning Categories
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CAP was originally developed based primarily on US requirements and as such may not reflect non-US regional considerations, policies, etc. This may be why groups outside the US are developing profiles with extensions - which is not necessarily good for interoperability. That said, there is some coordination of these activities occurring in OASIS as part of the CAP profiling and CAP 2.0 activity. I am sure Art can add more of a perspective on this. Another touch point is that the European community is defining and prototyping an event based alerting architecture that is coordinated with the INSPIRE (pan-European spatial data infrastructure) activity. The architecture is payload agnostic and can support any number of alerting payload encodings (CAP, GeoRSS, Atom based, other). Carl > Hi Keith, > >>Firstly, I am not sure the identification of the types of >>warnings I wish to subscribe to, and the nature of the >>warning, are necessarily one and the same thing, yet that >>seems to be assumed by the drafts. > > If you want to subscribe to certain alerts then there better should be a > relationship otherwise the point of including any information about > desired > alerts is a bit mood. > > Henning was a bit doubtful of the benefit of subscribing to separate > categories of alerts. Someone else suggested that this should be left to a > manual procedure of picking the right server that has a certain type of > alert messages to distribute, e.g., weather alerts. > >> >>Secondly, surely we should be seeking some alignment of >>warning types between the different delivery mechanisms. > > This is not the feedback I got from others. > >>I >>note that we have lists in >>http://tools.ietf.org/html/draft-rosen-sipping-cap-04 and >>http://tools.ietf.org/html/draft-rosen-ecrit-lost-early-warning >>-01 that are aligned with each other, but bear no relationship >>with those being defined in other bodies. > > Well. I took these terms from the categories in the CAP specification. > > >> >>For example 3GPP TS 22.268 defines the umbrella for warnings >>provided by the cell broadcast service >> >>http://www.3gpp.org/ftp/Specs/html-info/22268.htm >> >>This defines a structure that incorporates at least ETWS for >>the far east, and CMAS for north america. Europe is still >>working on a coordinated set of requirements. >> >>and you will find the message identifiers for these two in >>3GPP TS 23.041 >> >>http://www.3gpp.org/ftp/Specs/html-info/23041.htm >> >>Including recent expansions which have not yet appeared in the >>published document these come down to: >> >>ETWS CBS Message Identifier for earthquake warning message. >>ETWS CBS Message Identifier for tsunami warning message. >>ETWS CBS Message Identifier for earthquake and tsunami >>combined warning message. >>ETWS CBS Message Identifier for test message. >>ETWS CBS Message Identifier for messages related to other >>emergency types. >>ETWS CBS Message Identifier for future extension. > > Thanks for these pointers. Interesting to see that there are different > categories being used compared to the CAP work. > > > Ciao > Hannes > >>regards >> >>Keith >> >> >> >>> -----Original Message----- >>> From: earlywarning-bounces@ietf.org >>> [mailto:earlywarning-bounces@ietf.org] On Behalf Of James M. Polk >>> Sent: Monday, July 13, 2009 2:58 AM >>> To: David Aylward (Comcare); 'Art Botterell'; earlywarning@ietf.org; >>> cap-list@incident.com >>> Cc: Timothy Grapes; ltincher@evotecinc.com >>> Subject: Re: [earlywarning] [CAP] Definition of Warning Categories >>> >>> All >>> >>> While I might agree with the reasons you have stated for the >>vagueness >>> of categories, I have to look at Henning's example as a why I don't >>> necessarily want "all warnings" from a geography. For example, he >>> rightfully stated that just because I listed Tsunami warnings as >>> something I care about, I should also care about the chemical leaks, >>> or Tornados in my area too. >>> >>> And there's the rub - who decides what warnings I get? >>> >>> If I subscribe to (conceivably) all warnings in my area, do I really >>> care when Dave has falen and can't reach his beer? Is that so >>> monumental to anyone else? Local policy might dictate that yeah - >>> everyone should do what it takes to get Dave his beer, but I don't >>> necessarily need to care, therefore I will likely NOT want >>to get this >>> messages. >>> >>> Too many warning messages will create a "cry wolf" mode of me >>> eventually believing none of them are useful, regardless of >>what they >>> say. I just won't reach for my (whatever) device if it's just out of >>> my reach. >>> >>> Perhaps general categories ought to be looked at, because I think I >>> can see exactly where Hannes is going, and I believe I'm in the same >>> ballpark as him thinking this ought to be a little more >>specific for >>> subscriptions. >>> >>> James >>> >>> At 03:41 PM 7/12/2009, David Aylward \(Comcare\) wrote: >>> >Hannes: >>> > >>> >That is exactly what I was talking about, but CAP was not >>> designed for that. >>> >It is a >>> >"broadcast to the world" standard. It is excellent for that >>> purpose, >>> >but not for the more refined purpose you are pursuing. >>> > >>> >The OASIS EDXL Distribution Element was designed for exactly >>> that purpose: >>> >machine to machine routing based on incident type, role and similar >>> >factors, and primarily as Art suggests in the "wholesale", >>> inter-organization world. >>> > >>> > >>> >Organizations (and individuals connected to them) subscribe >>> to "hear" >>> >about incident types within certain geographies. >>> > >>> >We have talked in the past, Hannes, about "core services", >>> the purpose >>> >of them is to provision queries such as you suggest, and >>> govern rights >>> >to send and receive such messages. >>> > >>> >Lots of work has been done on these ideas outside of the >>> >message-specific standards that they would enable. >>> > >>> > >>> >David K. Aylward, President >>> >COMCARE Emergency Response Technology Group >>> >1351 Independence Court, SE >>> >Washington, DC 20003 >>> >202.255.3215 (mobile) >>> >202.295.0136 (office) >>> >202.521.4047 (fax) >>> >daylward@comcare.org >>> > >>> >This communication is intended for the use of the recipient >>> to which it >>> >is addressed, and may contain confidential, personal and/or >>> privileged >>> >information. Please contact us immediately if you are not >>> the intended >>> >recipient of this communication, and do not copy, >>> distribute, or take >>> >action relying on it. Any communication received in error, or >>> >subsequent reply, should be deleted or destroyed. >>> > >>> > >>> >-----Original Message----- >>> >From: cap-list-bounces@lists.incident.com >>> >[mailto:cap-list-bounces@lists.incident.com] On Behalf Of >>> Art Botterell >>> >Sent: Sunday, July 12, 2009 3:23 PM >>> >To: earlywarning@ietf.org; cap-list@incident.com >>> >Subject: Re: [CAP] Definition of Warning Categories >>> > >>> >I'm wondering whether it might be simpler, at least in the >>> near term, >>> >to let consumers subscribe to selected sources rather than >>> to topical >>> >categories. That pushes the question of message >>authoritativeness / >>> >jurisdiction /credibility out of the CAP infrastructure and >>> into the >>> >larger field of inter-agency and inter-jurisidictional >>coordination, >>> >where it more properly belongs. >>> > >>> >Taxonomies tend to be culturally loaded and can never be >>> guaranteed to >>> >be complete. Thus there's a real risk of "categorical disconnects" >>> >leading to missed alerts either because of differing >>> interpretations of >>> >categories or of unforeseen events that don't fit our preconceived >>> >categories. Maybe someday we'll have a reliable taxonomy of the >>> >unexpected, but right now a degree of deliberate imprecision >>> seems to >>> >be the best we can do... and I sometimes wonder whether >>even that is >>> >more helpful than it is risky. >>> > >>> >- Art >>> > >>> > >>> >On Jul 12, 2009, at 7/12/09 11:58 AM, Hannes Tschofenig wrote: >>> > >>> > > I should provide a bit more feedback about the background to my >>> > > question. >>> > > >>> > > If you only set the value in the category field for the >>> purpose of >>> > > human consumption then there is not really an interoperability >>> > > issue. >>> > > >>> > > Now, with the work on >>> >http://tools.ietf.org/html/draft-rosen-sipping-cap-03 >>> > > we wanted to define an event package for SIP that allows you to >>> > > "subscribe" >>> > > to certain type of events: you might indicate something like >>> > > location and the type of events you are interested in. >>> > > >>> > > Now, the semantic of the category field suddently >>> matters. With the >>> > > individuals-to-citizen emergency services we tried to >>> come up with a >>> > > description of the emergency services categories, see RFC 5031. >>> > > >>> > > Ciao >>> > > Hannes >>> > >>> >_______________________________________________ >>> >This list is for public discussion of the Common Alerting >>Protocol. >>> >This list is NOT part of the formal record of the OASIS >>> Emergency Management TC. >>> >Comments for the OASIS record should be posted using the form at >>> >http://www.oasis-open.org/committees/comments/form.php?wg_abb >>> rev=emerge >>> >ncy >>> >CAP-list mailing list >>> >CAP-list@lists.incident.com >>> >http://lists.incident.com/mailman/listinfo/cap-list >>> > >>> >This list is not for announcements, advertising or advocacy of any >>> >particular program or product other than the CAP itself. >>> > >>> > >>> > >>> >_______________________________________________ >>> >earlywarning mailing list >>> >earlywarning@ietf.org >>> >https://www.ietf.org/mailman/listinfo/earlywarning >>> >>> _______________________________________________ >>> earlywarning mailing list >>> earlywarning@ietf.org >>> https://www.ietf.org/mailman/listinfo/earlywarning >>> >>_______________________________________________ >>earlywarning mailing list >>earlywarning@ietf.org >>https://www.ietf.org/mailman/listinfo/earlywarning >> > > _______________________________________________ > earlywarning mailing list > earlywarning@ietf.org > https://www.ietf.org/mailman/listinfo/earlywarning >
- Re: [earlywarning] [CAP] Definition of Warning Ca… Tony Rutkowski
- [earlywarning] Definition of Warning Categories Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… Art Botterell
- Re: [earlywarning] [CAP] Definition of Warning Ca… Art Botterell
- Re: [earlywarning] [CAP] Definition of Warning Ca… Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… David Aylward (Comcare)
- Re: [earlywarning] [CAP] Definition of Warning Ca… Art Botterell
- Re: [earlywarning] [CAP] Definition of Warning Ca… Henning Schulzrinne
- Re: [earlywarning] [CAP] Definition of Warning Ca… David Aylward (Comcare)
- Re: [earlywarning] [CAP] Definition of Warning Ca… David Aylward (Comcare)
- Re: [earlywarning] [CAP] Definition of Warning Ca… James M. Polk
- Re: [earlywarning] [CAP] Definition of Warning Ca… David Aylward (Comcare)
- Re: [earlywarning] [CAP] Definition of Warning Ca… DRAGE, Keith (Keith)
- Re: [earlywarning] [CAP] Definition of Warning Ca… Tony Rutkowski
- Re: [earlywarning] [CAP] Definition of Warning Ca… Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… Tony Rutkowski
- Re: [earlywarning] [CAP] Definition of Warning Ca… Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… creed
- Re: [earlywarning] [CAP] Definition of Warning Ca… Art Botterell
- Re: [earlywarning] [CAP] Definition of Warning Ca… Art Botterell
- Re: [earlywarning] [CAP] Definition of Warning Ca… Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… Hannes Tschofenig
- Re: [earlywarning] [CAP] Definition of Warning Ca… Timothy Grapes
- Re: [earlywarning] [CAP] Definition of Warning Ca… Rex Buddenberg
- Re: [earlywarning] [CAP] Definition of Warning Ca… Rex Buddenberg
- Re: [earlywarning] [CAP] Definition of Warning Ca… Tony Rutkowski
- Re: [earlywarning] [CAP] Definition of Warning Ca… Brian Rosen
- Re: [earlywarning] [CAP] Definition of Warning Ca… Timothy Grapes