What's the difference between Swiss integral and circular system?

Generally speaking, the round robin system is used when there are few players or the season is long, and every two players will fight. Swiss points system is generally used for games with a large number of players and a schedule of only a few days. The feature is to arrange the next round of competition according to the ranking of the players after the last round of competition, so as to ensure that the opponents in each round are as close as possible, and the players who have already played will not play again. In the case of the same score, compare the opponent's score, progressive score and intermediate score to discharge the specific ranking.