Proxy voting
Overview
 
Proxy voting has two forms: delegable voting and delegated voting, which are procedures for the delegation
Delegation
Delegation is the assignment of authority and responsibility to another person to carry out specific activities. However the person who delegated the work remains accountable for the outcome of the delegated work. Delegation empowers a subordinate to make decisions, i.e...

 to another member of a voting
Voting
Voting is a method for a group such as a meeting or an electorate to make a decision or express an opinion—often following discussions, debates, or election campaigns. It is often found in democracies and republics.- Reasons for voting :...

 body of that member's power to vote in his absence, and/or for the selection of additional representatives, as in the case with transitive proxies. Proxy appointments can be used to form a voting bloc
Voting bloc
A voting bloc is a group of voters that are so motivated by a specific concern or group of concerns that it helps determine how they vote in elections. The divisions between voting blocs are known as cleavage...

 that can exercise greater influence in deliberation
Deliberation
Deliberation is a process of thoughtfully weighing options, usually prior to voting. In legal settings a jury famously uses deliberation because it is given specific options, like guilty or not guilty, along with information and arguments to evaluate. Deliberation emphasizes the use of logic and...

s or negotiation
Negotiation
Negotiation is a dialogue between two or more people or parties, intended to reach an understanding, resolve point of difference, or gain advantage in outcome of dialogue, to produce an agreement upon courses of action, to bargain for individual or collective advantage, to craft outcomes to satisfy...

s. A person so designated is called a "proxy" and the person designating him is called a "principal."

The parliamentary manual Riddick's Rules of Procedure
Riddick's Rules of Procedure
Riddick's Rules of Procedure is a parliamentary authority - a book explaining the parliamentary procedure, including the rules, ethics, and customs governing meetings and other operations of the United States Senate. It was written by Floyd M. Riddick and co-authored by Miriam Butcher...

notes that under proxy voting, voting for officers should be done by ballot, due to the difficulties involved in authentication if a member simply calls out, "I cast 17 votes for Mr.
 
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