user interface guidelines

User interface design guidelines provide fairly precise advice on all aspecst of UX design from the positioning of buttons, to how many items are suitable for certain kinds of lists or menus. There are general sets of guidelines and in some each guideline is associated with evidence. In addition platforms may have their own guidelines for third party developers, as well as helping improve the quality of each applications, these guidelines help to ensure consistent behaviour on the platform. One of the most well known of these are Apple Human Interface Guidelines. Finally, organisations may create their own sets of guidlines to help maintain a consistent UX