Associate Professor of Information Systems and Operations Management Ram Chellappa spoke extensively to media (video above) Monday in regards to Delta Airlines massive computer outage. The breakdown was caused by a power failure and grounded hundreds of flights.

It also caused delays and backups that could last for days.

Chellappa, who examines airline industry pricing and systems said this incident is a reminder of just how tightly integrated computer networks have become and the need for extra diligence and safeguards.  These systems are “as important, or more important, as our bridges and other physical infrastructure that need to be constantly upgraded and maintained,” Chellappa told the Atlanta Journal-Constitution.