what is meant by Loose coupling ?

what is meant by Loose coupling and its problem?

Here is a good article from the MSDN:

http://msdn.microsoft.com/en-us/magazine/cc337885.aspx

It may help shed some light on loose coupling.

Thanks.

Quote:

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Originally Posted by honeyboy_20

what is meant by Loose coupling and its problem?

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Loose coupling is the SOLUTION to a series of problems, the looser the better.

Tight coupling, basically means something made up of ttwo or more parts, where the parts can NOT be used individually.

Code:

---

class Driver
{
    public Car ar;
}

class Car
{
}

---

Driver is tightly to Car, and can not be used without it.

I would say that what you are talking about is a difference between association and aggregation. As I understood loose coupling vs. tight coupling, it is about a knowleadge of specific type of associated object, so the client rely on the specifict type (tight) rather that on its contract (loose).