How did the team at GOV.UK tackle the IA for a site where the users are ‘everyone’ and needs range from the personal to the professional? Where content is uneven, unpredictable and being constantly added to by hundreds of organisations? Where content is crucial because users have nowhere else to go? Is it possible to create a simple and flexible underlying architecture that is user-focused and can meet a variety of demands alongside a process that is sustainable and can scale?