Calgary oil and gas producers have been directed by the AEUB to change their data systems from the old NAD27 coordinate system (datum) to the more recent NAD83 datum by 2008. For EnCana, Canada?s largest oil and gas company, this involves changes to 150 Tbytes of data held in >600 databases and migrating over 50 interconnected systems, all without impacting the business.

This challenge, which can be compared to "changing all the tires on vehicles running on Deerfoot without disrupting traffic", is the subject of this case-study discussion. The data clean-up, risk management and quality assurance approaches being employed will be explored. The work is being run as a program of related projects and the presentation will also discuss the Project Portfolio Management (PPM) tools being used to manage and track the program along with the upcoming challenges for 2006 and 2007.