SYSML11 — SysML -- Fix for Fig 9.4 p70.

On Fig 9.4 p 70. the I_ICEData I/F has the following services defined on the cntrl (the engine)

getRPM():Integer

getTemperature():Real

isKnockSensor():Boolean

These names make sense if the interface was a provided interface on the engine.

However, the I_ICEData interface on the engine is a REQUIRED interface.

The interface should be defined something more along the lines of…

hereIsRPM(:Integer)

hereIsTemperature(:Real)

hereIsKnockSensor(:Boolean)

as the engine is using this interface to tell the PowerControlUnit the current values of those properties.

This problem is duplicated later in Figure B.20 on p 194

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