Here's another awesome blogpost by my collegue Seb. In this one he explains why you should and how you can create an explicit Vue component API.
When refactoring your UI to components, always keep in mind that props and events are your components public API. Just like when you're modelling your application's domain, try to keep things explicit. Props and events should be enough to tell the outside world everything it needs to know about a component's behavior.
Read more [sebastiandedeyne.com]