public void setStreamMissRate(final NamedElement ph, final double rate) {
   final RealLiteral newPropertyValue = Aadl2Factory.eINSTANCE.createRealLiteral();
   newPropertyValue.setValue(rate);
   ph.setPropertyValue(
       GetProperties.lookupPropertyDefinition(ph, SEI._NAME, SEI.STREAM_MISS_RATE),
       newPropertyValue);
 }