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Doubt - Peabody Patterns Notes

 
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MVC -
Decouples presentation,business logic and data access components.
Is this feature common to these 4 patterns. (MVC,TO,BD,SL)?

TO -
Reduces coupling between presentation and business tiers.
You want to reduce remote requests across the network.
You want clients to access components in other tiers to retrieve and update data.
These 3 appear contradictory to me. Can you please clarify?

BD -
Reduces coupling between presentation and business tiers.

SL -
Reduces coupling between presentation and business tiers.

Please clarify.

[ December 03, 2008: Message edited by: Shiaber Shaam ]
[ December 03, 2008: Message edited by: Shiaber Shaam ]
 
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MVC -
Decouples presentation,business logic and data access components.
Is this feature common to these 4 patterns. (MVC,TO,BD,SL)?



You may have your application based on MVC and within that you may use other patterns for different purposes. Say for example, for Business Delegates to work with remote objects you may have a Service Locator (for locating the object in a registry) to avoid duplicate code in each Business Deligate objects.
 
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