Like most of the KMi Stadia this interface consists of the usual collection of simple regions, such as AV, Slides, Controls and Chat.
A small AV region is provided at the top left of the interface: before the webcast this showed an introductory video where the event organiser introduced the technology and context for the event; during the webcast this was switched to the live feed from the Wytch Farm oilfield; and afterwards (now) it was switched to a replay of the live event. In all cases this streams from the server to the client and is in synch with the other pieces.
The main control panel is directly beneath this video window. The key controls allow users to start/stop the AV stream, adjust the settings, open the chat window, get detailed state information about the system and so on. In this interface we provided a narrow chat input box at the bottom of the main slide pane. Users were able to type any comments or questions into this box and submit them throughout the presentation, without distracting from the slides region. To view the whole chat (incuding everyone else's public comments) they could zoom this region to cover most of the slide pane.
The slide pane itself, to the right of the controls area, is the largest area of the interface and is under the direct control of the presenter (during the live session). In addition to the usual graphic and bullet point slides this presentation also made use of more sophisticated media including a Quicktime VR object, a Quicktime movie, a simple section from a simulation and a number of Macromedia Flash animations.