A Swiss event is one where the next round's draw is determined by the relative positions of the pairs in the event field.
In a Swiss event a "round" is equivalent to a "session". The first session must be supplied by the user. Subsequent sessions may be supplied by the user or generated by the ASE Scorer.
When a session is created manually (rather than automatic Swiss generator) the "movement" is automatic (based on the number of tables specified) and the "draw" is determined by the numbers on the pairs screen. The numbers must be unique across the whole event, so where the session consists of a number of sections care is needed (multiple sections are needed where there are more than 45 tables in the field). The ASE Scorer checks that the numbers are unique.
When creating Swiss events, the section information is simply the board set number and the number of boards in the set. Where a half table is involved, the last table is assumed to contain the sit-out pair. Where an odd number of pairs are in the Swiss draw, the lowest ranked pair that has not sat out is placed at the sit out table.
The board set number dictates the default boards in play. Board set one starts with board number one. Subsequent board sets contain board numbers based on the number of boards per set. For example if there are 8 boards per set, then board set 3 will have boards 17-24.
A Swiss event is scored by "round", and a session contains only one round. Typically a Swiss event is scored using "Butler" methods, but may be scored in all available methods. Where the accumulated results are Victory Points, they are used in determining the draw.