Unary associationClass relationshipVisual paradigm association classclass association中文Association classAssociation classes in UML diagrams - IBM
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In UML diagrams, an association class is a class that is part of an association relationship between two other classes. Associationclasses InUMLdiagrams,anassociation classisaclassthatispartofanassociationrelationshipbetween twootherclasses.Youcanattachanassociationclasstoanassociationrelationship toprovideadditionalinformationabouttherelationship.Anassociation classisidenticaltootherclassesandcancontainoperations,attributes, aswellasotherassociations. Forexample,aclasscalledStudentrepresentsastudentandhas anassociationwithaclasscalledCourse,whichrepresentsaneducational course.TheStudentclasscanenrollinacourse.Anassociationclass calledEnrollmentfurtherdefinestherelationshipbetweentheStudent andCourseclassesbyprovidingsection,grade,andsemesterinformation relatedtotheassociationrelationship. Asthefollowingfigureillustrates,anassociationclassisconnected toanassociationbyadottedline. Relatedtasks Specifyingrelationshipsindiagrams Relatedreference Relationshiptypes Feedback
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