[Mailman-Users] aliases?

[James]

After 'newlist tech' I usually add to /etc/aliases few lines like this:

tech:              "|/var/lib/mailman/mail/mailman post tech"
tech-admin:        "|/var/lib/mailman/mail/mailman admin tech"
tech-bounces:      "|/var/lib/mailman/mail/mailman bounces tech"
tech-confirm:      "|/var/lib/mailman/mail/mailman confirm tech"
tech-join:         "|/var/lib/mailman/mail/mailman join tech"
tech-leave:        "|/var/lib/mailman/mail/mailman leave tech"
tech-owner:        "|/var/lib/mailman/mail/mailman owner tech"
tech-request:      "|/var/lib/mailman/mail/mailman request tech"
tech-subscribe:    "|/var/lib/mailman/mail/mailman subscribe tech"
tech-unsubscribe:  "|/var/lib/mailman/mail/mailman unsubscribe tech"

Is this a correct way of adding/managingin mailman aliases database?
I'm using Postfix, and mailman v2.1.5.