An association is managed by the board of directors. A corporation is managed by stockholders.
An association is managed by its members. A corporation is managed by a board of directors and may or may not have members.
An association is a group of two or more people that form a group to carry out a special purpose and the members make the rules. They elect volunteers as executive board members who are subordinate to the members.
An association is formed by the Board of Directors who set the rules, collect dues, and manage common areas. The members responsibility is to pay dues and abide by the rules.