NMWG%20Schema%20Abstractions

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NMWG Schema Abstractions

• Martin Swany
• Merten Leupolt
• Dan Gunter

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Top-down view of data and metadata
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Operation
Subject
0..1
1
Metadata
Parameters
0..
Data
Generation of values
Subject
Values
Operation

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NO Raw Data
Subject
Values
Operation

Subject
Values
Operation

..etc..
Initial subject is arbitrary point in
derivation chain (more generally, graph).
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Example
Etc..
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What goes where

• Three top-level abstract elements subject,
  operation(parameters), data
• Requests will have a subject and operation
• Reports will have data and, optionally, a copy of
  the subject and operation from the request
• But if the requestor is the same as the reportee,
  then just use identifiers

Henceforth, abbreviated operation
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Subject and Data
Subject
Operation
Path.delay.roundTrip
Network entity
Path.bw.achievable
Data
mean
Proposal Current result schemas be used as a
source of standard names for the data values.
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Operation

• Keep current ones for requesting live tests
• Just inherit from an abstract operation type
  and add an identifier attribute
• Add a set of database-friendly ops for querying
  archived results
• Projection (select), selection (where), grouping
  (group by), sorting (order by)
• Could these two be gracefully joined?