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Business Delegate Vs Facade ??

R K Singh
Ranch Hand

Joined: Oct 15, 2001
Posts: 5371
from Podar exam
======
Question 53
_________ pattern provides a layer between clients and subsystems of a complex system; shields clients from subsystem components, making the subsystems easier to use
A Singleton
B Fa´┐Żade
C Business Delegate
D Template method
======
ans is B.
but I think answre should be Business Delegate as it is Biz delegate which hides complex system details
CMIW
TIA


"Thanks to Indian media who has over the period of time swiped out intellectual taste from mass Indian population." - Chetan Parekh
g madhava
Ranch Hand

Joined: Sep 14, 2001
Posts: 85
Actually Business Delegate (BD) is used to seperate the presentation tier and the Business logic. BD has nothing got to do with hiding the complex functionality (which FAcade is capable of) although it does in the process.
cheers,
R K Singh
Ranch Hand

Joined: Oct 15, 2001
Posts: 5371
Thanks madhava
Dave Matthews
Greenhorn

Joined: Jun 11, 2002
Posts: 15
Does anyone know which patterns you can be tested on in the exam, most study guides and info just mention the 4 main ones (Value Object, MVC, Business Delegate and Data Access Object). This question mentions others I've only heard of, do you need to know a wide range of patterns or just the main 4?
Amit Ghag
Greenhorn

Joined: May 11, 2002
Posts: 27
Some one told me to study all the patterns used in PetStore. But i think u should not ignore - MVC,Business Delegate,DataAccessObject,Value Objects, Front Controller and Session Facade. In most of the mock exams, i have come across these patterns.


Regards,
Amit
 
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