A trading system is a set of rules and guidelines that traders use to make decisions about buying and selling financial assets, such as stocks or currencies. These systems can be based on technical analysis, which involves studying price charts and patterns, or fundamental analysis, which looks at economic indicators and company performance. The goal is to create a structured approach that helps traders minimize risks and maximize profits. Many traders use automated trading systems, which execute trades based on predefined criteria without human intervention. These systems can analyze market data quickly and efficiently, allowing for faster decision-making. Popular platforms for automated trading include MetaTrader and NinjaTrader, which provide tools for developing and testing trading strategies.