@startuml
' mimick visual style of UML @ Classroom <10.1007/978-3-319-12742-2>
skinparam packageStyle file
hide circle
skinparam classAttributeIconSize 0

package Person {

abstract Person {
+ name: String
}

class ResearchAssociate extends Person {
+ field: String
}

class Student extends Person

}

package Activity {

abstract Activity {
+ name: String
}

class Course extends Activity {
+ {static} id: int
+ lecturer: ResearchAssociate
+ ects: int
}
Course *-- Person.ResearchAssociate

class StudentProject extends Activity {
+ supervisor: ResearchAssociate
+ ects: int
}
StudentProject *-- Person.ResearchAssociate

class Programme {
+ student: Student
+ activities: Activity[]
+ addActivity(): void
+ valid()
}
Programme *- Course
Programme *- StudentProject
Programme "1" *-- Person.Student

}

package Bachelorizer {

class Bachelorizer {
+ programme: Programme
}
Bachelorizer -- Activity.Programme

}

@enduml