Move Field
From CSSEMediaWiki
A field is, or will be used by another class more than the class in which it is defined.
Moving state and behavior between classes is the very essence of refactoring. As the system develops, you find the need for new classes and the need to shuffle responsibilities around. A design decision that is reasonable and correct one week can become incorrect in another. That is not a problem; the only problem is not to do something about it.
