"The project in Helsinki is an example of a concept where you can see all the ideas as a manifold connection. We call it Kiasma; an intertwining. From the beginning of the design process the museum contained a perspectival series of spaces which are separate rooms connected through an unfolding perspective. We made plaster models, to study this further, because the nature of the concept was volumetric rather than linear. So the process went from those plaster models wheree the conceptual strategy is vaguely set, to the development of all the internal aspects. I then drew water colour perspective drawings which I always do before the plan is set. Very often we will build models based on these drawings and then try to make plans; for the perspectival condition to take precedence over the plan."