ABSTRACT
Drawings and models have one major function in common and that is communication. They are the means by which architects convey their ideas to other people, whether prospective clients or the public, or in detailed instructions for a builder. They are also the means by which architects develop those ideas. The analysis of a series of drawings of a particular building can reveal whether the architect's ideas changed during the evolution of the design or during the course of the construction. They can also give some insight into the architect's approach to design and provide a record of their intentions at a particular moment. The type of detail given in a plan will depend on its purpose. A large scale giving constructional specifications in great detail may be necessary in order for craftspeople to carry out instructions, whereas a small scale giving few details may be all that a client would require to be convinced of the merits of a project. Plans should give the north point to show the orientation of the building, for this determines the type of natural light that will be available.
