JA-assistant is a software independent of JA-Tennis which allows the administrative assistants, or with the judges referees themselves to control information of the players at the time of their arrival, throw the matches, to record the scores and to provide the evening, a detailed assessment of the day.

The referee and the assistant lay out each one of a machine. The referee uses JA-Tennis and the assistant JA-Assistant. The morning, a planning of the matches to be made, will be transferred from JA-Tennis towards JA-Assistant. In the course of the day the assistant
progressively controls the licence of the players with their arrival, launches the matches, records the scores and gives finally the next convocation to the winner. The evening, after the last finished match, planning is transferred towards JA-Tennis for recording from the
scores and the events from the day. This transfer is carried out automatically by removable disk, mall or manually by simple reading of a summary document printed or received by FAX.