A product's architecture is driven by a number of factors including; shape and size of components, usability, functional specification, mechanical functions, aesthetic considerations and assembly and manufacturing requirements.
We consider all of these aspects when developing architectures for a new product, keeping the end user as our focus. Volumetric models help designers quickly understand and evaluate architecture, particularly in terms of usability.
Usually a small number of product architectures are agreed upon for development and concept sketches help to quickly illustrate designs in terms of styling and user interaction.