Trusts are often created as an alternative to or in conjunction with a Will. Trusts are today usually considered an estate planning tool. The Uniform Probate Code includes provisions dealing with affairs and estates of the deceased and laws dealing with nontestamentary transfers such as trusts. The theory behind the Code is that wills and trusts are in close relationship and thus in need of unification. Since its creation, over thirty percent of states have adopted most provision of the Code.