The modern, computer-age version of traditional drafting makes use of architectural CAD. The term CAD stands for Computer Aided Design, a tool which can be used in many adaptations of architectural design. A CAD draftsperson is responsible for developing working drawings, plans, diagrams or layouts based on the sketches, calculations, specification sheets and other data supplied by architects and engineers. These plans describe the size, shape, mechanics and function of structures for the use of construction teams and will be used to prepare detailed blueprints.

A CAD draftsperson must ensure that their drawings conform to precise specifications by using their knowledge of architectural materials, practices and conventions and by closely checking their drawings for errors. CAD has replaced traditional drafting as it is faster, more accurate and allows for simulations while providing all the storage, filing, memory and duplicating advantages of the modern computer. However, draftspersons using CAD still make use of the same knowledge of building construction theory and drafting and design standards traditionally required by this occupation. 

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