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Mixed member proportional representation, also termed mixed-member proportional representation and commonly abbreviated to MMP, is a voting system used to elect representatives to numerous legislatures around the world. MMP is similar to other forms of proportional representation in that the overall total of party members in the elected body is intended to mirror the overall proportion of votes received; it differs by including a set of members elected by geographic constituency who are deducted from the party totals so as to maintain overall proportionality. In the United Kingdom, the form of MMP in use for several bodies is known as the additional member system (AMS), although the term additional member system can also be more broadly applied to include parallel voting, a non-proportional system. In Germany it is called "personalized proportional representation" as distinct from the PR system used before MMP superseded it.