Class Diagrams show the different classes that make up a system and how they relate to each other. Class Diagrams are said to be static diagrams because they show the classes, along with their methods and attributes as well as the static relationships between them: which classes know about which classes or which classes are part of another class, but do not show the method calls between them.
Klassiskeemid kujutavad süsteemi moodustavaid klasse ja nendevahelisi suhteid. Öeldakse, et klassiskeemid on staatilised skeemid, sest nad kujutavad klasse, nende meetodeid ja atribuute ning nendevahelisi suhteid: millised klassid teavad millistest klassidest või millised klassid on teiste klasside osadeks, kuid ei kujuta meetodite väljakutseid nende vahel.