What notation represents constraint properties?

The notation that represents constraint properties is a round-angle rectangle labeled with the format "name: type." This notation is used in modeling to indicate constraints that apply to elements within the model. Constraints are essential for defining conditions that restrict or govern the behavior of model elements, ensuring that they operate within specified boundaries.

The round-angle rectangle effectively signifies that the item represented has an associated name and type, which allows users to clearly identify the constraint and understand its nature. By employing this notation, modelers can convey precise information about the limitations or requirements involved in the system's operation, making it easier for others to interpret the model consistently and accurately.

In contrast, the other notations do not specifically denote constraint properties. For example, a circle with an arrow typically represents an association or a relationship between elements, while a dashed line across the diagram may indicate a dependency or a different type of relationship. Lastly, a filled square is often used to represent a port or a component, rather than a constraint. Thus, the round-angle rectangle notation is the most suitable choice for conveying the properties of constraints in the context of system modeling.