Final answer:
West Germany was established as a Parliamentary Democracy and a Federal Republic after World War II, with power shared between elected representatives and a federal structure of states.
Step-by-step explanation:
After World War II, West Germany was established as a capitalist democracy contrasted to the Communist government of East Germany. The West German government operated as a Parliamentary Democracy, where political power was vested in elected representatives and a chancellor, similar to arrangements commonly found in other European nations after the war. The nation included multiple political parties and provided for proportional representation in the Bundestag, its federal parliament. This system of government allowed for multi-party governance, typical in democratic societies. Additionally, West Germany was structured as a Federal Republic, which is a union of states with a central government, but with certain powers reserved to the individual states.