Unlike traditional design, Critical Design is focussing on the communication of an idea rather the development of a product or service. Therefore any constraints that a designer might find in developing a product or service, such as budget, limited materials, time, physics, difficult clients, are for a Critical Designer only constraints in terms of the presentation of the idea. In a way, Critical design seems to need to set itself free of the constraints, and focus only on a thematic constraint so that it is able to be truly critical.