Documentation: The comparison criterion is used to express criteria of the forms: (1) Is the (most_recent|average_of) Observation value within valid_window, whose coded-concept is specified in the code_concept slot, is equal to, greater than, less than, or not equal to the value of "value" slot. (2) If vmr_class is not Observation, then we use this to check if the number of instances of such vmr class that satisfy the specified constraints is equal ti, greater than, less than, or not equal to the value of "value" slot

Superclasses

• Criterion

Subclasses

• None

Types

• :STANDARD-CLASS

Template Slots
	Slot Name	Documentation	Type	Cardinality
	aggregation_operator	Operator to reduce the set of results returned by a VMR_Query into a single result	{most_recent, average, number_of, first, second, third, any, all}	1:1
	assume	Default assumption about whether the criterion is true when there is no sufficient data to evaluate the criterion	{no_assumption, assume_true, assume_false}	0:1
	code	from vocabThe code (in a terminology system) that represents a concept	Class	1:1
	label	A short human readable string indicating the content of the instancehuman-readable string for the instance	String	0:1
	operator	operator used in the specification of an expression	{equals, >, <, >=, <=, not_equals, in, not_in, implies}	1:1
	valid_window	The time interval that should encompass the effective time (valid time) of the data to be used in expressions	TimeInterval, Variable, VMR_Query, Function, RelativeTimeInterval	0:1
	value	The value of this slot answers the question, "what was found?". This slot is tightly bound the the "code" slot to describe an observation.A data value	Expression	1:1
	vmr_class	The VMR class of the selection	Class	1:1

Own Slots
	Slot Name	Value
	:ROLE	Concrete
	:SLOT-CONSTRAINTS

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