[1] This consists of information technology; media; research and development; information-based services such as information-generation and information-sharing; and knowledge-based services such as consultation, entertainment, broadcasting, mass media, telecommunication, education, information technology, financial planning, blogging, and designing.
[2] Other definitions describe the quaternary sector as pure services.
[3] This may consist of the entertainment industry, to describe media and culture, and government.
It has only limited and indirect connections to the industrial economy characterized by the three-sector model.
[4] For example, the tertiary and quaternary sectors form the largest part of the UK economy, employing 76% of the workforce.