What is sequential voting?

Single or sequential vote methods

An example of runoff voting. Runoff voting involves two rounds of voting. Only two candidates continue to the second round.

The most prevalent single-winner voting method, by far, is plurality (also called "first-past-the-post", "relative majority", or "winner-take-all"), where each voter votes for one choice, and the choice that receives the most votes wins, even if it receives less than a majority of votes.

Runoff methods hold multiple rounds of plurality voting to ensure that the winner is elected by a majority. Top-two runoff voting, the second most common method used in elections, holds a runoff election between the two highest polling options if there is no absolute majority (50% plus one). In elimination runoff elections, the weakest candidate(s) are eliminated until there is a majority.

A primary election process is also used as a two round runoff voting system. The two candidates or choices with the most votes in the open primary ballot progress to the general election. The difference between a runoff and an open primary is that a winner is never chosen in the primary, while the first round of a runoff can result in a winner if one candidate has over 50% of the vote.

In the Random ballot method, each voter votes for one option and a single ballot is selected at random to determine the winner. This is mostly used as a tiebreaker for other methods.

http://en.wikipedia.org/wiki/Voting_system#Single_...

Sequential Runoff

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RE:

What is sequential voting?

What is sequential voting? I've looked online and I haven't found much, other than 25-page research papers from Duke & Princeton that I don't understand.

So -

What is sequential voting? Does it have any other names?

When is it used?