Graphical models are used to communicate design ideas.

• 2D and 3D graphical models

• Perspective, projection and scale drawings

• Sketching versus formal drawing techniques

• Part and assembly drawings

• How graphical models are used to communicate with oneself and others

• How the choice of graphical models varies in relation to the context

• Advantages and disadvantages of using different graphical models

Graphical models can take many forms, but their prime function is always the same—to simplify the data and present it in such a way that understanding of what is being presented aids further development or discussion. Designers utilize graphical modelling as a tool to explore creative solutions and refine ideas from the technically impossible to the technically possible, widening the constraints of what is feasible.