What's on Mike's mind?

Read what's on Mike's mind!

Cialis online

The Care and Feeding of Old Systems

Posted by Mike on December 28th, 2004

I have been waiting for a report on exactly what happened to cause the computer crash that has disabled Comair. I’m not particularly interested in the company, but rather the problem. Here is an article from The Cincinati Post, describing what happened.

Tom Carter, a computer consultant with Clover Link Systems of Los Angeles, said the application has a hard limit of 32,000 changes in a single month.

“This probably seemed like plenty to the designers, but when the storms hit last week, they caused many, many crew reassignments, and the value of 32,000 was exceeded,” he said.

Legacy systems will often contain such hard limits. Usually, they are buried deep in the code and sometimes no one knows that they exist. Any point where such hard limits exist must be discovered. A solution needs to then be designed for each situation. If you are a manager or a maintainer of such a system, it is your responsibility to do this. When you are questioned, just point out the Comair computer disaster.

Leave a Reply

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>