The Westinghouse electric and manufacturing company poster was published with the pupose to:
2. Promote the idea that working was a woman's patriotic duty.
It's main goal was to persuade women to start working in the factories during the World war II, while men were abroad fighting. It uses symbols to induce women to protect their country economy by joining the workforce. It uses factories clothes and the stregth posed by Rosie with the frase "We can do it!" as a way to persuade and stress the need of working women.