Count the Number of Instances of an Entity

To count the number of instances there are of an entity, you use the Instance Count function. The syntax for this function is:

InstanceCount(<relationship text>)
the number of <relationship text>

For example, the Instance Count function could be used to determine the number of children belonging to the claimant as shown below.

Table 1. Example of the use of the InstanceCount function
Example rule	Input	Output
Example rule	the child	the number of children that the claimant has
the number of children that the claimant has = InstanceCount(the claimant's children)	Anthony	4
	Peter
	Rebecca
	Fiona

For this rule to validate the following entities and relationship must be defined in the project: an entity 'the claimant' , an entity 'the child' and a one-to-many relationship 'the claimant's children'.