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Measurement properties for Actuators ?

From: Maxime Lefrançois <maxime.lefrancois@emse.fr>
Date: Mon, 27 Mar 2017 16:28:27 +0000
Message-ID: <CALsPASXjpv8n3eK+_pqqksPQ8x8GCZoJHNe9AvCv3x=KkGcKXA@mail.gmail.com>
To: SDW WG Public List <public-sdw-wg@w3.org>
Dear all,

With respect to item 4 in the SSN agenda tomorrow:

SSN defines Measurement properties:

a ssn:Sensor can be linked to a ssn:MeasurementCapability through property
ssn:hasMeasurementCapability,
a ssn:MeasurementCapability can be linked:
 - to zero or more ssn:Property to which it applies through property
ssn:forProperty ;
 - to zero or more ssn:Condition in which this capability is true using
ssn:inCondition ;
 - to zero or more ssn:MeasurementProperty through property
ssn:hasMeasurementProperty .

Then the hierarchy of measurement properties is:

ssn:MeasurementProperty
|- ssn:MeasurementRange
|- ssn:Accuracy
|- ssn:DetectionLimit
|- ssn:Drift
|- ssn:Frequency
|- ssn:Latency
|- ssn:Precision
|- ssn:Resolution
|- ssn:ResponseTime
|- ssn:Selectivity
|- ssn:Sensitivity


I'm not an expert in sensors and actuators, but I guess some of these
properties can also apply to actuators. As a first guess, I would say
Accuracy, ActuationLimit, Drift, Frequency, Latency, Precision, Resolution,
ResponseTime.

Question: What should we do ? This is some of the options I can propose:

 Option 1: do nothing
  pro:

 Option 2: make so that these properties can also be applied for actuators.
if so, we need:
  - to change the documentation for all of the MeasurementProperties so
that they can be applied to actuators as well.
  - to change the name MeasurementProperty?
  - to change the name MeasurementCapability?
  - to deprecate oldssn:MeasurementProperty, deprecate
ssn:hasMeasurementProperty?
  - to deprecate oldssn:MeasurementProperty, keep
ssn:hasMeasurementProperty, introduce ssn:hasActuationProperty?

 Option 3: deprecate all this part of the old SSN ontology, and potentially
re-introduce them in a future version of the SSN ontology?

Wiki page
https://www.w3.org/2015/spatial/wiki/index.php?title=Measurement_and_Operating_properties_for_actuators
lists these options and discusses the pros and cons of each.

Best,
Maxime
Received on Monday, 27 March 2017 16:29:14 UTC

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