How testautomation have reduced the critical failures

Within the Swedish Pension Agency we have done a hugh job to change the process of develop and test system before they run in production environment.
With our big bulk of automated test we can do releases and changes to our case management system twice a week instead of four times a year.
This have reduced our critical failures and incident. Have also lead to a better environment for our customer support organisation.
The installation can also be done without stop in the case management system.
Will with this presentation show how important it is with automation in testing and importance of developers and testers to work together towards same goal.
And that testers can be a crucial help also in the writing and review of unit tests.