Class diagrams describe the static structure of a program, i.e. the building blocks of a program and how they relate to each other.

A building's capability for motion can be used just to: enhance its aesthetic qualities; respond to environmental conditions; and/or, perform functions that would be impossible for a static structure.

Multiple static structures experimentally determined for the same protein in different conformations are often used to emulate receptor flexibility.

Steel rivets can be found in static structures such as bridges, cranes, and building frames.

Object-oriented modeling typically divides into two aspects of work: the modeling of dynamic behaviors like business processes and use cases, and the modeling of static structures like classes and components.