The importance of private

Hello, I was very very busy in the last months; so I restart to write posts now and this is a short post, but useful, post.

You know a  Livecode program is made of many object nested one inside another:

and livecode for every call, search that function or message from the stack to the nested element, so to avoid ambiguity in very big project, you can prefix the word private, so that function or message is visible only in that object (card, stack, button or else).
Example:

private function increase
      answer "Increase the volume"
end increase