In this example, the requirement involves allowing users to upload and download presentation files for the TSANet member meetings and training events that occur worldwide during the year. The users can simply select a presentation after choosing an event from the dropdown menu, they then see a download dialogue box and choose a location on their hard disk to save it to. Certain users e.g. the TSANet staff or the presenter from a particular company – say Citrix Systems – can also upload Powerpoint, Acrobat PDF or various other file formats.