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.
Oakham is the county town of Rutland in the East Midlands of England, 25 miles (40.2 km) east of Leicester, 28 miles (45.1 km) south-east of Nottingham and 23 miles (37.0 km) west of Peterborough. It had a population of 10,922 in the 2011 census. Oakham is to the west of Rutland Water, one of Europe's largest man-made lakes, and in the Vale of Catmose. Its height above sea level ranges from 325 ft (99 m) to 400 ft (120 m).