Form follows function? In relevationary principle concept? Yes.
Fashionable Architecture?...well, I do declare!?
Rather: To be serious...Functional Formism: At its basic and evolutionary comprehensible expression: Architecturally and applicably otherwise? Ref:
http://en.wikipedia.org/wiki/Functional_Formism
http://en.wikipedia.org/wiki/Form_follows_function
http://www.gwd-architecture.com