VISUALISATION SYSTEM

The invention refers to visualisation system for annotating a source message, comprising a source module, provided with a first interface for displaying said source message, an annotation module, provided with a second interface for recording and displaying a first annotation of said source message, and a time display module, provided with a third interface for indicating a time lapse. The source message is a text message and it is linked to said time lapse, thereby providing portions of said source message with respective durations defined by a starting position and an ending position in said time lapse. The annotation is in the form of video images. The visualisation system further comprises a controller for controlling the pace of annotation by decreasing an average pace of a moveable position indicator. The pace of annotating said source message is dynamically controllable by the user of the system.