The work of an architect is to design buildings and supervise their construction. A simple definition for a task of immense complexity and variety, requiring a seven-year training for the student architect to learn how to integrate the countless social, technological and aesthetic aspects involved in the design and construction of a building. The foundations of 'modernism' in architecture are rooted in the philosophy that developed as a result of the Industrial Revolution in the eighteenth century, that progress is made through ever-increased rationalism, and therefore that 'form follows function'. Buildings were to be primarily functional, with the belief that when functional demands were fully met, beauty would be the inevitable outcome. The tools with which the architect expresses his ideas to the outside world, and which are used as the detailed plans for the construction of his buildings, are his design drawings.