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Subject: Meeting Notes from last weeks IF meeting
Attendance: Since we had light
attendance and Item #15 is the requirement
to allow multiple representations of a Target Area (for example both Polygon
and LocCode) and to be able to specify precedence (an ordering) which indicates
which representation is most accurate. Ways to do this include: 1) Specify that the
precedence be the “document order” in the XML text. – We would
have to redefine the schema to remove the current sequence order restriction -
[ 2) Use an attribute directly
in the tags (i.e. <polygon precedence=”true”> - This would require
parsing all elements to find which are set to “true” which could
confusingly be set twice or more. 3) Use an attribute in
<target area> (i.e. <targetArea most_accurate=”polygon”>
- This would at least always be in same place and if it where not present, or ignored,
it would match today’s behavior. 4) Add a <MostAccurate>
tag: ie: <TargetArea> <Polygon> <MostAccurate> ... </Polygon> <Circle> ... </Circle> </TargetArea> 5) Add explicit
<primary> and <secondary> container elements <TargetArea> <PrimaryRepresentation> <Polygon> ... </Polygon> </PrimaryRepresentation> <SecondaryRepresentation> <Circle> ... </Circle> <SecondaryRepresentation> </TargetArea> 6) Specify a set universal order
of accuracy: i.e. <Polygon> is always the best representation, then
<LocCode>, then <Circle>, then <BoundingBox>, etc. [Hans]
expressed problems with any universal ordering because there are clear cases
where the order would be different. For example when the target area is a state
then the locCode is exact and the polygon is an approximation. When the target
area is a plume, then the polygon is a best estimate and the locCodes are a
poor approximation. Additional discussion
points: [ [ -- Principal Systems Engineer Solace Systems Inc. hans.jespersen@solacesystems.com |
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