variableDef — Defines signals used in DAVE-ML model
variableDef : name, varID, units, [axisSystem], [sign], [alias], [symbol], [initialValue]
(description?,
(provenance? | provenanceRef?)
, calculation?, isOutput?, isState?, isStateDeriv?, isStdAIAA?, uncertainty?)
- the name of the signal being defined
- an internal, document-unique XML name for the signal
- the units of the signal
(optional) - the axis in which the signal is measured
(optional) - the sign convention for the signal, if any
(optional) - possible alias name (facility specific) for the signal
(optional) - UNICODE symbol for the signal
(optional) - an initial and possibly constant numeric value for the signal
variableDef elements provide wiring information - that is, they identify the input and output signals used by these function blocks. They also provide MathML content markup to indicate any calculation required to arrive at the value of the variable, using other variables as inputs. The variable definition can include statistical information regarding the uncertainty of the values which it might take on, when measured after any calculation is performed. Information about the reason for inclusion or change to this element can be included in an optional provenance subelement.