Business layer: Looking for a complete reference? -

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i'm studying business layer , need complete reference covers issues "how manage dependency between business layer , other layers", "how many ways there send data between layers" , important me "how group business logic , make business component , talk possible ways....".

do know reference?

edit: delighted if introduce e-book it.

thank you

the best (in opinion) approaches decoupling layers use message passing metaphor. way communication between layers done messages types contain information pertinent communication. these light weight types interpreted each layer see fit.

in essence don't pass things not needed. if both layers need piece of information there high hood other entity should brokering access information (for example persisted data in db).


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