Architecture is both the process and
the product of planning, designing
and constructing buildings or any
other structures. Architectural
works, in the material form of
buildings, are often perceived
as cultural symbols and as
works of art. Historical
civilizations are often
identified with their
surviving architectural
achievements.
The earliest surviving written work on the subject of architecture is De architectura,
by the Roman architect Vitruvius in the early 1st century AD. According to Vitruvius,
a good building should satisfy the three principles of firmitas, utilitas, venustas,
commonly known by the original translation – firmness, commodity and delight.
An equivalent in modern English would be:
• Durability – a building should stand up robustly and remain in good condition.
• Utility – it should be suitable for the purposes for which it is used.
• Beauty – it should be aesthetically pleasing.
Since the 1980s, as the complexity of buildings began to increase (in terms of structural systems, services, energy and technologies), the field of architecture became multi-disciplinary with specializations for each project type, technological expertise or project delivery methods.
In addition, there has been an increased separation of the 'design' architect from the 'project' architect who ensures that the project meets the required standards and deals with matters of liability.