Which elements are typically included in a class diagram?

The selection that identifies elements typically included in a class diagram focuses on the structural aspects of a system, represented through classes, their attributes, and methods. Class diagrams are a key component of Unified Modeling Language (UML) and serve to depict the static structure of a system's classes, which describe the properties of the objects that will be created.

In these diagrams, classes are shown as boxes containing the class name, which often indicates its purpose or functionality. Attributes, representing the data or properties belonging to the class, and methods, which define the functions the class can perform or the operations it can carry out, are essential elements of class diagrams. This organization allows developers and stakeholders to understand the relationships and hierarchies between different classes, facilitating better communication and analysis during the design phase of software development.

In contrast, other options include aspects that do not typically belong in class diagrams. For instance, user interfaces and interactions are more relevant to use case diagrams or interface design but do not depict the structural design of the system. Database schemas and queries relate to data management and organization rather than class structures. Lastly, user stories and documentation focus on the narrative and user experience rather than the formal representation of classes and their relationships within the system.