Symbol (<)

The < operator is a comparison operator used to check whether the value on the left-hand side is strictly less than the value on the right-hand side. It evaluates to a Boolean result (true or false) and is commonly used in OCL constraints, validations, and conditional expressions.

Example:

Assume the Department class has an attribute called EmployeeCount.

self.EmployeeCount < 10

What this means

• The Department must have fewer than 10 employees
• If EmployeeCount is less than 10, the expression returns True
• If it is 10 or more, it returns false

Using a Collection

Department.allInstances->exists(d | d.Score < 10)

Results