Essentially, there are 12 main electoral systems, the majority of which fall into three broad families (see Electoral System Family). This data shows electoral system for national legislature.
Block Vote
Borda Count
Limited Vote
Alternative Vote
Two-Round System
Party Block Vote
First Past The Post
Parallel Systems
Single Transferable Vote
Single Non-Transferable Vote
Mixed Member Proportional System
List Proportional Representation
No provisions for direct elections