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Sigma KEE - SpeakerDevice
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SpeakerDevice
SpeakerDevice is a type of device that converts electrical signals into sounds loud enough to be heard at a distance
Relationships      
Parents Device A Device is an Artifact whose purpose is to serve as an instrument in a specific subclass of Process.
  ElectricDevice A Device that uses Electricity as its primary power source.
Children ElectricSpeakerDeviceA combination SpeakerDevice and ElectricDevice.


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Sigma version 3.0 is open source software produced by Articulate Software and its partners