When does an object or perfor mance stop being artistic and start being art?

Does it cease to be art when no pleasurable feeling is derived from it? Many would argue that even though the arts do not serve any domestic function, they can
be extremely useful as a means of interpreting our world and spiritually
nourishing our lives. Is that not useful?

When does an object or performance stop being artistic and start being art? Are there rules that must be satisfied or is it simply in the eye of the beholder? Does the quality of something determine if it qualifies as art?