dependency means : a semantic relationship between two things, in which a change to
one thing (the independent) thing may effect the semantics of the other thing (the
dependent thing). for example, the relationship between Class "event" and Class
"window", when event changes, window Class will behave differently in answer to
different events.
association means: a structural relationship that describes a set of links, in which a
link is a concrete connection among objects; it represents the semantic relationship
between two or more classifier (class, interface, etc) that involves the connections
among their instances. for example, Class "employee" and Class "employer", employee
"works for" emplyer, the "works for" is a association relationship.
if you have the Jacobson book - "UML User Guide", you can get more detailed
explanation from page 63 to 66.
Liang Peng
EMOOSE 2001
--------------------------------------------------------------------------------
Ecole des Mines de Nantes
Eleve Master Of Sciences EMOOSE
Departement d'Informatique
Addr: App R105, 5 Allee J.B Fourier
44300 Nantes, France
Tel : +33 (0)6 89 39 83 32
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Mail : [EMAIL PROTECTED]
HomePage - http://liang.peng.free.fr/
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----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, July 30, 2001 11:01 AM
Subject: (ROSE) Dependency and Association
>
>
> Hi, I am a Rose User.
>
> My problem is :
> when I should use the dependency and
> when I should use the association.
>
> Please tell me about the difference between the dependency and
> association.
>
> In the UML1.3 specfication, I wonder what the differnce is.
>
> Thanks.
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