IDC Analyst Simon Piff answers questions on behalf of IT Executives regarding the benefits and challenges of using one or a combination of clouds with an enterprise IT architecture, to include private, an on-premise, privately owned architecture; public, an off-premise, shared utility; and hybrid, any combination of the previous two. Regardless of what is selected, cloud has firmly established itself within the enterprise IT architecture and all organizations need to have a strategy to take advantage of what it has to offer.