I have a new project with 4 users and some tasks which is only allowed to certain users.
Since the users and tasks are fixed i thought no need of using ACL.
is my decision is correct??
Then can i have multiple prefix for each users if yes how can i achive it??
I need to restrict the task of user A from user B how can i achive it???
4 users is also a list. I would suggest you to use the INI-based ACL component if you don't need to change permissions on the fly.