Question: Which branch is the professional or special interest group involved in the electoral process that makes part of a framework of political system, dominated by the People's Republic of China?

Context paragraphs:
Functional constituency (Macau): The functional constituency is a professional or special interest group involved in the electoral process, they make up part of the political systems of Macau in legislative branch.  Eligible voters in a functional constituency are designated legal entities such as organisations and corporations.  Hong Kong has similar political systems.

Democratic capitalism: Democratic capitalism, also known as capitalist democracy, is a political, economic and social ideology that involves the combination of a democratic political system with a capitalist economic system.  It is based on a tripartite arrangement of a private sector-driven market economy based predominantly on a democratic policy, economic incentives through free markets, fiscal responsibility and a liberal moral-cultural system which encourages pluralism.  This ideology supports a capitalist economy subject to control by a democratic political system that is supported by the majority.  It stands in contrast to corporatism by limiting the influence of special interest groups, including corporate lobbyists, on politics.

SIGUCCS: SIGUCCS (Special Interest Group on University and College Computing Services) is an association of professionals who support and manage the diverse aspects of information technology services at higher education institutions by providing professional development opportunities for SIGUCCS members and other individuals in the field.  SIGUCCS is one of 34 special interest groups of ACM, the Association for Computing Machinery, the world’s largest educational and scientific computing society.

Politics of Macau: Politics of Macau is a framework of political system, dominated by the People's Republic of China.  It includes the legislature, the judiciary, the government, and a multi-party system.  Executive power is exercised by the government, led by the Chief Executive.

Penny Crane Award for Distinguished Service: The Penny Crane Award for Distinguished Service is an award issued by the Association for Computing Machinery's Special Interest Group on University and College Computing Services.  It was established in 2000 to recognise individuals who have made significant contributions to the Special Interest Group, and to computing in higher education.

Osmar R. Zaiane: Osmar R. Zaiane (born April 11, 1965, in Bad Kissingen, Germany) is a researcher, computer scientist, professor at the University of Alberta specializing in data mining and machine learning.  He was the secretary treasurer of the Association for Computing Machinery (ACM) Special Interest Group on Knowledge Discovery and Data Mining (SIGKDD) from 2009 to 2012 and treasurer of the ACM Special Interest Group on Health Informatics.  He served as the editor-in-chief of the SIGKDD Explorations publication from 2008 to 2010.  He was also the associate editor of the same publication from 2004 to 2007.

Race Ethnicity and Education: Race Ethnicity and Education is a biannual peer-reviewed academic journal covering ethnic studies as it pertains to education.  It was established in 1998 and is published by Routledge.  It is supported by the American Educational Research Association's Critical Examination of Race, Ethnicity, Class and Gender in Education Special Interest Group, as well as by the British Educational Research Association's ’Race’ Ethnicity and Education Special Interest Group.  The editor-in-chief is David Gillborn (UCL Institute of Education).  According to the "Journal Citation Reports", the journal has a 2015 impact factor of 0.935.

SIGCAT: SIGCAT (Special Interest Group on CD Applications and Technology) was a special interest group founded in 1986 by Jerry McFaul, an employee of the US Geological Survey.  It became the world's largest CD-ROM users' group, with over 11,000 members in 75 countries.  SIGCAT held annual conferences until 1999.

Australasian Raptor Association: The Australasian Raptor Association was founded in 1978 as a special interest group of the Royal Australasian Ornithologists Union, also known as Birds Australia.  It is now a special interest group of BirdLife Australia.  It promotes the study and conservation of the diurnal and nocturnal raptors, sometimes called birds of prey, of Australasia and South-east Asia.  It publishes a journal, "Boobook", twice a year.

Functional constituency (Hong Kong): In the political systems of Hong Kong, a functional constituency is a professional or special interest group involved in the electoral process.  Eligible voters in a functional constituency may include natural persons as well as other designated legal entities such as organisations and corporations.

Supporting paragraphs: Functional constituency (Macau) Politics of Macau
Answer: legislative