Question rules

Question rules

For defining the question rules the program uses Boolean algebra.

Language definition

Variables

The variables must start with an alphabet character and then can have any tipe of character. They must do refference to a question name, if not an error will occur. Some valid Variable names are:

Question_39
Q-139
s123X23X123

Operators

Value operators

We have the operators:

• '=', '==' : equal operator
• '!=', '<>' : Different operator
• '>' : Greater than operator
• '<' : Lesser than operator
• '>=' : Greater or equal than operator
• '<=' : Lesser or equal than operator

Relationship operators

• '&&', 'and' : and operator
• '||', 'or' : or operator