Netball is a ball sport played by two teams of seven players. Its development, derived from early versions of basketball, began in England in the 1890s. By 1960, international playing rules had been standardised for the game, and the International Federation of Netball and Women's Basketball (later renamed the International Netball Federation (INF)) was formed. As of 2011, the INF comprises more than 60 national teams organized into five global regions.

Each team is allowed seven players on the court. Each player is assigned a specific position, which limits their movement to a certain area of the court. A "bib" worn by each player contains a two-letter abbreviation indicating this position. Only two positions are permitted in the attacking shooting circle, and can, therefore, shoot for a goal. Similarly, only two positions are permitted in the defensive shooting circle; they try to prevent the opposition from shooting goals. Other players are restricted to two-thirds of the court, with the exception of the Centre, who may move anywhere on the court except for a shooting circle.

There are seven different playing positions in netball and each of them signifies different areas of play. They are namely:

1. Goal Shooter

2. Goal Attack

3. Wing Attack

4. Centre

5. Wing Defence

6. Goal Defence

7. Goal Keeper

More Info: en.wikipedia.org