2
votes
3answers
382 views

DAL vs BLL functions' return types

Here is how I see the main differences between the DAL and the BLL: The DAL directly query the database. The DAL doesn't create new information. It may execute complex sql requests, joining several ...
8
votes
2answers
2k views

GUI, BLL, DAL Organization In A Project

I'm reading about application layers, and want to use this design in my next project (c#, .Net). Some questions: Is the separation of layers done through namespaces? Project.BLL.Whatever, ...