Standardization of interfaces for senior: Consistency is always recommended, but sometimes stability of interface can be sacrificed for better efficiency or aesthetics of design. Consistency and stability of interface, particularly of navigation and pages’ layout is valuable for the elderly even more that for general users. It’s advisable that all the pages of a website have the same navigation (the capability to go back must be included too), and that navigation is clearly marked as one. Also, all the control elements (e.g. links) must be made distinct from other elements on a page. Not to allow the overload of the cognitive abilities of the elderly and to allow them to better rely on their long-term experience.