Proper notice must also be given for meetings of shareholders and boards of directors, and the lack of such notice can invalidate the entire meeting and all votes. Official bodies, such as corporations, make decisions by voting. However, the vote required on a specific matter depends on the action to be taken. For example, some motions require a majority vote and some require a two-third's vote. An improper vote makes any action ineffectual and can lead to lawsuits.
Parliamentary procedure takes many forms and has many specific rules.
Even so, business people and officers of organizations must be aware of the basics of parliamentary practice. Such knowledge can make the difference between official actions and illegal ones.