Architecture of the implementation

    /-------------\    /-------------\    /--------------\    
    |             |    |             |    |              |
    | text files, |    | database    |    | colloquium   |
    | one per     |--->| browser/    |===>| as browsable |
    | object      |    | generator   |    | structure of |
    |             |<===| written in  |<***| HTML pages   |
    |             |    | CommonLisp  |    |              |
    |             |    |             |    |              |
    \-------------/    \-------------/    \--------------/
                              *          /        |
                              *   /-----/         |
                              *  /                |
                         maintainer           end user