Parliamentary systems are characterized by "not having" clear-cut separation of powers between the executive and legislative branches, leading to a different set of checks and balances compared to those found in presidential systems. Parliamentary systems usually have a clear differentiation between the head of government and the head of state, with the head of government being the prime minister or premier, and the head of state often being a figurehead, usually either a president (elected either popularly or by the parliament) or a hereditary monarch (or representative thereof such as a Governor-General), often seen in a constitutional monarchy.[citation needed]
• Background
Parliamentarianism may also be for governance in local governments. An example is the city of Oslo, which has an executive council (Byråd) as a part of the parliamentary system..
Students of democracy such as Arend Lijphart divide parliamentary democracies into two different systems, the Westminster and Consensus systems (See Lijphart 1999 for this section).[citation needed]
The Palace of Westminster in London, United Kingdom. The Westminster system originates from the British Houses of Parliament.
• The Westminster system is usually found in Commonwealth of Nations countries, although it is not universal within nor exclusive to Commonwealth countries. These parliaments tend to have a more adversarial style of debate and the plenary session of parliament is more important than committees. Some parliaments in this model are elected using a plurality voting system (first past the post), such as the United Kingdom, Canada, and India, while others use