Materials and their properties, which determine the features of the product, for example cars and aircraft.
Scientific and technological knowledge and concepts
Technical drawing, which conveys the idea of an obiect.
Information technology throughout all the design and
manufactoring process.
The Internet is also especially important for finding information and communicating ideas.
Work techniques include how to use tools, transformation
procedures and assembly processes
Economic factors like the pnce of materials, production costs, supply and demand and the buying power of the population