Question about EA

OK , I have a question about EAs , my question is if i install an EA on my meta trader platform , do i need to keep my platform opened as well as my internet connection or not ( the EA will trade automatically without an active connection to the internet ).

Yes your computer has to be on and MT4 has to be running.

As an alternative you could install your EA at a third party location specializing in trading platforms. There are several VPS services familiar with MT4 platforms.

This way you can log in from any computer and watch your EA trade.

Try to pick a service with several redundancies in place...more than one ISP, gasoline power generator, several servers...etc...

ES

we can test an EA using strategy tester right?how?

I am not a backtester...I am a forward tester..I would not even know how to backtest or optimize...or such...,

ES