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Layer Separation of DAL and Business Object

The time tracker example adds pieces of the Data Access
layer to the business Object. Shouldn't there be a third
layer that communicates with the DAL, Business Object and
Presentation layer call the Object Declarations (Data
Tranfer Object)?

www.asp.net example 2/24/04 "Creating Collections for Data
Binding and Serialization" is more in line with this than
the time tracker example. Which is the preferred
methodolgy that should be used for designing applications?

Also, What about encapsulating the DataRow in a Property
within your Object Declarations (Data Tranfer Object)?

Nov 22 '05 #1
0 740

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