Rules

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[edit]

The Clinical Data Definition template enables conditional processing and other rules to be documented.

An example of conditional processing can be seen in the Smoking Assessment. If the response to the first question Have You Ever Smoked is "No," there is no reason to ask the following questions that relate specifically to Smoking.

Including an "IF - THEN" statement in the Relationships section indicates that certain questions are conditioned on the response to another question.

[edit] Example Rule

In the example below, the response to the "Have you ever smoked?" question will determine whether any of the subsequent questions are relevant.

===Relationships===
{| border="1"
! Question !!Dependency !!Cardinality
|-
|[[Have You Ever Smoked]]|| ||1..1
|-
|[[Do You Smoke Now]]  || [[Have You Ever Smoked]] = YES ||0..1
|-
|[[Number of Cigarettes]]|| [[Have You Ever Smoked]] = YES ||0..1
|-
|[[Age When Commenced Smoking]]|| [[Have You Ever Smoked]] = YES ||0..1
|-
|[[Average Number of Cigarettes]]|| [[Have You Ever Smoked]] = YES ||0..1
|- 
|[[Age When Stopped Smoking]]|| [[Have You Ever Smoked]] = YES ||0..1
|-
|[[Tobacco Products]]|| [[Have You Ever Smoked]] = YES ||0..1
|}

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