When spouses have joint custody, they need to work together and cooperate in raising the children. This can sometimes be difficult, particularly when there is a lot of conflict in the spouses' relationship with one another. Before the ''[[Family Law Act]]'' came into effect, the rights and obligations involved in joint custody were usually addressed through a guardianship order under the ''Family Relations Act'', in particular through two models of joint guardianship, the Horn model and the Joyce model. The ''Family Law Act'' doesn't talk about guardianship the way the old law did and can't be used to spell out spouses' rights and obligations in the same way. However, since joint custody involves the need to work together and cooperate in making parenting decisions, the models can still work. They just need to be changed a bit.