In short, progressive systems refer to roulette strategies with increasing bets.
If you need some more basic information about the game, check this roulette guide. I have spent many an hour testing a number of strategies from each category and you can find my honest personal opinions of each, along with a simple (wherever possible) explanation of how they work below. The most effective roulette strategies can be divided into three approaches: progressive, non-progressive and physical. **Depends on the size and fiscal risk of wager
