The document discusses different approaches to architectural design: - Pragmatic design uses available materials and standard construction methods without innovation. - Iconic design is more conservative and calls for copying existing solutions by modifying them for new conditions. - Canonic design relies on rules like planning grids and proportioning systems as seen in Le Corbusier's modular designs. - Analogical design results from using analogies with other fields or contexts, seen in Santiago Calatrava's use of organic forms.