7.3

l Add Condition: Createanew condition at the selected level, using a standard logical operator (AND, OR).
l Add Subcondition: Indent the selected condition by one level and createanew condition at this level, linked with the
selected condtion by a standard logical operator (AND, OR). The purpose of using sub conditions is to explicitely
arrange the order on which conditions are evaluated and the way they are nested together.
l Delete Condition: Delete the selected condition.
Example
As an example, consider the followingconditional expression, where A, B, C and D are conditions of the form <EXPRESSION
1><OPERATOR><EXPRESSION 2>:
A and (B or C) and D
Such a conditional expression can be expressed by means of sub conditions in the following way:
1. Definecondition A.
2. Select condition A and choose Add Condition. Specify the logical operator AND.
3. Definecondition B.
4. Select condition B and choose Add Sub Condition. This will indent condition B and allow todefine the condition C. Spec-
ify the logical operator OR.
5. Define condition C.
6. Right click on the first AND operator (the one right after condition A) and choose Add Condition. Specify the logical oper-
ator AND. This will create a condition at the same level as A.
7. Define condition D.
The resulting conditional expression will be indented like this:
A
AND
B
OR
C
AND
D
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