From the broad and general to the small and local, elections are designed to serve different purposes for various political voting systems.
Elections have been the usual mechanism by which modern representative democracy has operated since the 17th century.
A ballot is a device used to cast votes in an election; types of ballots include secret ballots and ranked ballots.
Common voting systems are majority rule, proportional representation, or plurality voting with a number of criteria for the winner.
An electoral district is a territorial subdivision whose members (constituents) elect one or more representatives to a legislative body.