Technical drawing, drafting or drawing, is the act and discipline of composing drawings that visually communicate how something functions or is constructed.
Technical drawing is essential for communicating ideas in industry and engineering. To make the drawings easier to understand, people use familiar symbols, perspectives, units of measurement, notation systems, visual styles, and page layout. Together, such conventions constitute a visual language and help to ensure that the drawing is unambiguous and relatively easy to understand. Many of the symbols and principles of technical drawing are codified in an international standard called ISO 128.
The need for precise communication in the preparation of a functional document distinguishes technical drawing from the expressive drawing of the visual arts. Artistic drawings are subjectively interpreted; their meanings are multiply determined. Technical drawings are understood to have one intended meaning.
A drafter, draftsperson, or draughtsman is a person who makes a drawing (technical or expressive). A professional drafter who makes technical drawings is sometimes called a drafting technician.
Oxford (/ˈɒksfərd/) is a city in England. It is the county town and only city of Oxfordshire. In 2017, its population was estimated at 152,450. It is 56 miles (90 km) northwest of London, 64 miles (103 km) southeast of Birmingham, and 61 miles (98 km) northeast of Bristol. The city is home to the University of Oxford, the oldest university in the English-speaking world, and has buildings in every style of English architecture from late Anglo-Saxon. Oxford's industries include motor manufacturing, education, publishing, information technology and science.