Agregation vs Heredity

[Legolas_Bilbao]

I´ve a question i want to implemente a class paperA and class paperB only have 2 common attributes , i want to do using uml standards like heredity or agregation what is the best perform and why thanks

Dios creo un equipo perfecto a los demas los lleno de extranjeros

[Jun Du]

It's about relationship, not performance. You should get the relationship right. Inheritance describes that B is an A, but aggregation describes that B has an A. For example, a car is a vehicle, but a car has (is not) an engine.

Best, Jun

[Legolas_Bilbao]

then how can i develop this class? using what ink paper is paper and thermic paper is paper or with agregation thanks

Dios creo un equipo perfecto a los demas los lleno de extranjeros

[Jun Du]

It sounds like inheritance.

Best, Jun

[Legolas_Bilbao]

thanks

Dios creo un equipo perfecto a los demas los lleno de extranjeros