Are there established alternatives to ISomething / ISomethingable for interfaces?

Question

The .NET standard of prefixing an interface name with an I seems to be becoming widespread and isn\'t just limited to .NET any more. I have come across a lot of Java code that u

Answer 1

You asked for an alternative, so here is one I have encountered:

Use no prefix on the interface class, but use a c or C prefix on the corresponding concrete classes. Most of your code will generally reference the interface, so why pollute it with the prefix and not the generally much less used concrete type.

This approach does introduce one inconsistency in that some concrete types will be prefixed (the ones with matching interfaces) and others will not. This may be useful since it reminds developers that an interface exists and its use should be preferred over the concrete type.

To be honest, I use the prefix on the interface, but I think it is more because I have become so accustomed and comfortable with to it.