Operands and operators

A formula is composed of 2 main elements:

• Operands are data point used in operations. They can be a value, a variable, or the result of another operation.
• Operators represent an action that combines two provided operands into a single boolean result.

Nesting

Nesting conditions allows you to combine multiple logical operations into a single rule by placing one condition inside another. This enables more sophisticated and precise decision-making within a single evaluation flow.

For example, let's say you want to build a rule that detects if a user makes a transaction that is greater than 50% of their declared income. To do so:

1. The first operand will be your transaction amount

2. The main operator here is ≥

3. Then, click on your 2nd operand, and select Modeling → Open brackets

4. 

   In the newly added brackets:

   1. enter 0.5as the first operand (for 50%)
   2. × as the operator
   3. your income field as the second operand

There you go! Here's what your rule should look like: it indeed check if the transaction amount is greater than or equal to 50% of the user's declared income.