Architecting Happiness is the theme for this year’s World Information Architecture Day to be celebrated on February 21. Speakers at the event in Hyderabad on Saturday will be Prasad Kantamneni, CEO & Founder of UX Reactor Inc, a specialist in user experience; Anvita Bajpai, author and lead consultant at Wipro Technologies; Manojna Yeluri of Artistik License, a legal education initiative; and Prudhvi Reddy, co-founder of think.3d.in, a 3D printing applications firm.