Question

It’s first time for me to start with something like this. In applications with decent size DLL (Data Logic Layer), BLL (Business Logic Layer) is common to implement.

But with no great experience around this area i am struggling regarding where to start. Most of the time i did simple application where to open connect, get data, close connections. And this is not good with application of good size. right ?

I visited some sites but Architectural aspects are not thoroughly covered, most of people focus on small issues/steps. So please provide inputs regarding how can is proceed, books, blogs.

Answer 1

Take a look at what ORMs, like NHibernate, do. I’m not saying they will be perfect for your situation but you can assess and make your own judgement.

• Here is a more in depth overview of
  ORMs
• and there are lots more resources here to help you learn the architectural aspects