The designer produces visuals of user interfaces, using software such as Adobe Photoshop or Illustrator and will normally produce a separate visual for each type of screen within the product showing the screens’ layout, colour scheme, typography and any conventions for presenting images or other assets.
They make specifications, such as colour or style changes for hypertext links that are clicked or rolled over, or designing animated buttons or menus.
Depending on the type of product being created, the designer may also need to specify how, where and what sound effects or background music should be used.
They have to prepare designs in a way that allows them to be easily implemented by developers and designs must be appropriate for their intended purpose and visuals must be provided in the right format and at the correct size and resolution.