From ASX website:
"So what is a trading bot?
Firstly a trading bot is a piece of software which is built to execute certain command/s when specific criteria’s are met.
Bots can execute a buy bid at a specific price, or a sell bid at a specific volume. There are many variables that may be programmed into the bot.
The reason it is used, is to automate a specific task that may otherwise become repetitive for a human."
