Government system where the power to enact and enforce the law is held by Congress. In the UK there is a parliamentary government, one of the oldest governments in the world. The United States is not; through its legislative body, parliament, law, another part of the government, the executive branch enforces them
The parliament system is preferable to the presidential system. The parliament system is common in most of Europe, South Asia, and many former British colonies. The parliament system is often referred to as the prime minister and is characterized by executives who obtain legitimacy from Congress or Congress (often called Congress) after the UK "Parliament Building". The executive is the head of the government, usually a member of the parliament, and he is responsible for Congress. Therefore, the executives are separated from the head of state, the head of state is the monarch and the president of the regular ceremony. Meanwhile, in the presidential system, the head of the government is also the head of the state, the administrative department is in charge of individual elections from the legislature and separate elections. This type of system is used in most countries in the United States and Latin America, and in Russia.
The head of state is often given the power to summon and dissolve the parliament. In most parliament systems, this is usually done based on advice from the Government Head. However, in some parliamentary systems and some presidential system, the head of state may take the initiative. In some states parliament is fixed and there is no choice of election (eg Article 2, Paragraph 3 of the US Constitution). Under other systems, there are usually fixed conditions, but the head of state has authority to dissolve parliament under certain circumstances. If the head of the government loses support of the legislature, some Heads of State may refuse to dissolve and they will force to resign from the head of the government if they seek dissolution.