| 摘要 |
An especially multimedia work is stored on an information support accessible by reading, said work to be read by an appliance comprising a control unit provided with navigation means associated with a representation, on a visualization screen, of the navigation actions carried out. The support stores a composition (authoring) comprising pages to be displayed on the screen and links between said pages according to navigation actions carried out therein. According to the invention, the composition contains a set of pages of choices, each enabling a user to carry out, by means of the navigation means, one of a plurality of choices for forming a combination of choices, the links between said pages being such that the work can only be read if the different choices carried out correspond to a pre-determined combination. In this way, the reading can only be carrier out, due to a simple authoring process, when a pre-determined code is introduced. |
