Both supported and substituted decision making applies to persons under guardianship, hOwever, there is an important distinction between them.
Decision-making supports for persons with disability take many forms.
Supported decision-making applies to the situation where a supporter helps a supported person to make choices and to communicate these choices to others, such as banks, doctors, employers, etc.
On the other hand, substituted decision-making refers to the appointment of someone to make a decision on behalf of a person who is deemed to lack the mental capacity to make a decision for him or herself.