What Makes a Craftsman?

Not the titles, not the fancy tools. It is not the expertize, either. It is the responsibility one takes in doing one’s job. Why? Because what one wants from a craftsman is to have one’s problem solved. You want a doctor to see you through the illness and make you feel better, a developer -- to write software that serves your purpose, etc. You want the result.
There always was and always will be a tendency to consider the tools and titles when faced with a choice, which implies their necessity to you as a craftsman. If you're a developer, you'd better have all those fancy certificates saying you really know the languages, platforms, methodologies etc. People expect it. It will help you get your customers. Yet if you don't care, if you take no responsibility or don't provide the result they want, no certificate will help you keep them.
That is exactly why the most important part of your CV is the one saying what have you done. That is why, when choosing a doctor one checks his customer reviews rather then his diplomas. That is the ultimate quality criterion.