Difference between Generalization and specialization in UML.

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I want to know the clear difference between "Generalization" and "Specialization" in UML?

I have gone through the internet but I am unable to get the exact difference.

Could you please explain with an example.

Posted 2-Jun-11 21:19pm

sacraj

Updated 2-Jun-11 21:40pm

Dalek Dave

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Dalek Dave 3-Jun-11 3:40am

Edited for Grammar, Syntax and Readability.

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Abhinav S · Answer 1 · 2011-06-02T21:23:00

"Generalization is the process of extracting shared characteristics from two or more classes, and combining them into a generalized superclass. Shared characteristics can be attributes, associations, or methods."

"In contrast to generalization, specialization means creating new subclasses from an existing class."

Those two lines were excerpts from this article [^]- an excellent one. it explains all nuances well enough.

Uday P.Singh · Answer 2 · 2011-06-02T21:44:00

Solution 2

You can refer the following links:

http://sourcemaking.com/uml/modeling-it-systems/structural-view/generalization-specialization-and-inheritance[^]

http://design-antony.blogspot.com/2007/07/generalization-vs-specialization.html[^]

Posted 2-Jun-11 21:44pm

Uday P.Singh

Deepthi Aravind · Answer 3 · 2011-06-02T21:44:00

Generalization
---------------
If many similar existing objects are combined to form a superclass to do the job of its subclass', then it is known as Generalization

specialization
--------------
if some new subclasses are created from an existing superclass to do specific job of the superclass, then it is known as specialization.

Sergey Alexandrovich Kryukov · Answer 4 · 2011-06-03T16:04:00

Solution 4

I would advice to read this CodeProject article, it explains those concepts pretty clearly:
OOP and UML[^].

—SA

Posted 3-Jun-11 16:04pm

Sergey Alexandrovich Kryukov

Member 8657257 · Answer 5 · 2012-02-18T02:54:00

Solution 5

http://design-antony.blogspot.in/2007/07/generalization-vs-specialization.html[^]

Just refer the above link and you will get your answer.

Posted 18-Feb-12 2:54am

Member 8657257

Updated 18-Feb-12 4:11am

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André Kraak 18-Feb-12 10:12am

Edited solution:
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