Final answer:
'As drawn' drawings are the initial design plans created by an architect or engineer, while 'as built' drawings are created after the construction phase is complete and document any changes or modifications made during construction.
Step-by-step explanation:
In the field of engineering, 'as drawn' and 'as built' drawings refer to different stages of a construction project. 'As drawn' drawings are the initial design plans created by an architect or engineer. These drawings are typically created using computer software or hand-drawn on paper and show the intended layout and specifications of the building or structure.
'As built' drawings, on the other hand, are created after the construction phase is complete. These drawings document any changes or modifications that were made during the construction process to the original design. 'As built' drawings reflect the actual dimensions, materials used, and any other changes that were made during construction.
For example, if during the construction of a building, the architect decides to change the position of a door or add an extra window, those changes would be reflected in the 'as built' drawings. These drawings are important for future reference, maintenance, and renovations of the building.