Jamaica's constitution is made up of a variety of statutes and conventions that are either British or Jamaican in origin, which gives Jamaica a similar parliamentary system of government to the other Commonwealth realms, wherein the role of the Queen and the Governor-General is both legal and practical. The Crown is regarded as a corporation, in which several parts share the authority of the whole, with the Queen as the person at the centre of the constitutional construct, meaning all powers of state are constitutionally reposed in the monarch, who is represented by the Governor-Generalappointed by the monarch on the advice of the Prime Minister of Jamaica. Most of the Queen's domestic duties are performed by this vice-regal representative, though she is briefed through regular communications from her Jamaican ministers, and holds audience with them whenever possible.