Debian package naming convention?

It's all very confusing. There are different examples out there, for e.g.: _:--.deb *source: debian package file names * Is section 5.6.12 Version or the Debian Policy Manual also related to the actual package filename too? Or only to the fields in the control file? In this wiki topic about repository formats it doesn't really say anything about conventions, same in the developers best practices guide . Maybe I'm just looking for the wrong thing, please help me and tell me where to find the Debian package name conventions. I'm especially curious where to put the Debian codename. I want to do something like this: _.-_.deb where ` is just squeeze or wheezy`.