Hi @arnab
Summary from @jack.chan:
"If your flow is mostly linear and doesnt have a lot of branching logic, you can use a sequence
But if you have a lot of branching logic and use multiple nested if statements in a sequence , it is very hard to understand"
I would add that a flowchart allows for visualising a complex process into something that is more easily understood. A flow chart can allow you to support more than just a boolean (True/False) outcome in a simpler way.
Take a look here:
Cheers
Steve