BS Z 7:1998, ISO 14962:1997

Set - a group of items usually related to one another. Some objects cannot function without the complete set of items.

Language - the method of communication used in different areas. Humans and computers have many different languages.

Transport - Something that carries people or goods.

Language - The way humans communicate either written and spoken.

The British Standards Institution are a non profit making organisation, who produce standards and standard related services, for a variety of industries. The standards that they produce are used as a guideline or definition of the minimum levels certain services and product should reach. The standards are produced by BSI directly, following consultations and public enquiries. At shop.bsigroup.com, you can purchase a variety of standards. They stock documents for industries such as food and drink, engineering, building and construction, energy and utilities, transport and agriculture and farming. If you become a member of their site you can get huge discounts on their standards. They also offer training courses and conferences via their website, or you could take advantage of their online standards tools.