What criteria do you use to determine when to sunset an older technology?

This is an interesting operational question. Not only does it seek to understand how you manage technology in an ICT environment, but it also will help the interviewer gain some insight into how you balance cost and productivity. Many technology professionals chase the latest developments in their field and are willing to spend the organization's budget doing this. Others are overly budget conscious and don't upgrade products even when doing so may increase the organization's productivity. The key is finding a balance between these two strategies.

"There are several criteria I use when deciding when to sunset an older technology. The first is the cost of supporting the technology vs. the cost of upgrading it. Second, I consider the logistics of implementing a new technology including retraining the users. The final criteria I use is the impact on the organization, including downtime and any loss of productivity due to the transition."