action items

[Matthew Graham]

Hi Roy,

Thanks for these but I was looking for a capture of the comments/ 
decisions made as result of inputs from Arnold, Bob and others in the  
audience.

	Cheers,

	Matthew

On Sep 23, 2009, at 3:25 PM, Roy Williams wrote:

>
>> Um, did anyone take notes at Hotwired during my presentation on  
>> SEAP capturing what the audience requests were?
> Matthew
> Your talk from Hotwired summarizes the SEAP as of April 2008.
> http://www.cacr.caltech.edu/hotwired2/program/presentations/SEAP.pdf
> Some of my comments attached.
> Roy
>
> (1) It says: "a FIELD with the ucd “meta.ref.url” containing the  
> location from which the full VOEvent packet corresponding to that  
> record of the table may be retrieved."
> Question: How can I put in the SEAP response another URL that shows  
> more? For example
> http://www.skyalert.org/event/xml/9997/ goes to the XML for the  
> original event, but
> http://www.skyalert.org/events/6148/ is much richer with the whole  
> portfolio
>
> (2) The event IVORN carries multiple meanings. The general form is  
> ivo://authorityID/resourceKey#local_ID. We are using the first part  
> to define the event stream and the second for a local identifier of  
> the event. This we will need to search on the "preIVORN" (the part  
> before the #). To get all evenbts from the Fermi observatory, we  
> want preIVORN=ivo://nasa.gsfc.gcn/Fermi.
>
> (3) Searching on authorIVORN may not be much help if the author did  
> not use that element. As it says in the VOEvent spec, "As an  
> alternative to quoting Author information over and over, this  
> information can be published to the VO registry, then referenced  
> through an IVORN. The <AuthorIVORN> element contains the identifier  
> of the organization responsible for making the VOEvent available."
>
> (4) Params can be in Groups. This is not handled in the current  
> version of the spec.
>
> (5) What can be done about searching on string parameters? Strict  
> equality? Contains? Startswith, Endswith?
>
> (6) I am assuming that a "dataType" attribute will appear in the  
> VOEvent2.0 spec, so that we know whether something is a number or a  
> string. For strings "19" < "2" but for floats 19 > 2.
>
> (7) If there are multiple constraints, are they combined with AND or  
> OR?
>
> (8) I think that the Units of a param should be left well alone. A  
> SEAP implementation should know that 2 < 19, but should not know  
> that 2 kilometers > 19 meters.
>
> (9) Some in the VOEvent community would like to build special schema  
> for things like orbital elements and tables. Once the What section  
> has these complex data types beyond numbers and strings, how will  
> SEAP constraints act on these?
>
> (10) Is KML a mandatory output format?
>
> (11) The last page of your presentation with the complex search  
> regions seems much too complex. I vote to support cone search only:
> seap.pos.ra = 120 & seap.pos.dec = 15 & seap.pos.size = 0.5
>
> (12) Which VOTable is being used? Remember the 1.2 will not be  
> compatible with earlier versions.
>
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>
> -- 
>
> California Institute of Technology
> 626 395 3670
>
>