Question

Is there a general rule of thumb as to how many classes, interfaces etc should go in to a given name space before the items should be further classfied in to a new name space? Like a best practice or a community preference? Or is this all personal preference?

namespace: MyExample.Namespace  interface1  interface2  interface3  interface4  interface5  interface6  interface7  interface8  interface9 

Or

namespace: MyExample.Namespace.Group1  interface1  interface2  interface3 namespace: MyExample.Namespace.Group2  interface4  interface5  interface6 namespace: MyExample.Namespace.Group3  interface7  interface8  interface9 

Answer 1

I have not seen any rule of thumb at any reliable source but there are a few common preferences that I haven seen while working with most developers. There are a few things that help you make the namespaces.

1. Domain of the class
2. Is it a class or an interface (I have seen some developers prefer namespaces like ShopApp.Model.Interfaces ). Works really well if your interfaces are some service or data contract.
3. Dont have namespaces that are too deep, 3 (.) is enough. More than that may get annoying.
4. Be open to reorganize namespace if at anytime u feel it has become illogical or hard to manage.
5. Do not create namespaces just for the sake of it.