What is the notation for a value property?

The notation for a value property is represented by a rectangle with a solid boundary. This choice aligns with the UML (Unified Modeling Language) standards where attributes or properties of a class (which may include value properties) are depicted inside a solid rectangle. This solid boundary signifies that the property is an integral part of the structure of the class.

In UML modeling, the representation of a value property within a class helps convey essential information about that class's characteristics and behaviors. A value property is typically defined with a specific datatype and represents a single value that an instance of a class can hold. By using a rectangle, the model visually communicates that the property is easily recognizable and distinctly part of the class's definition.

This is particularly important in systems modeling as it provides clarity and facilitates effective communication about the elements within a model, thereby enhancing understanding among stakeholders involved in system design and analysis.