Public Cloud vs Private Cloud

Where public cloud services are suitable:

1. Where there is "limited exposure to heavy infrastructure investments such as mainframes and enterprise applications."
2. Where IT staff is more likely to have been brought up in the days of rapid development, virtualization automation, services on demand, or open source.
3. In a smaller business, where there is greater flexibility and agility in decision making.
4. Where there is a need for rapid turnaround and faster time to marker for new application.
5. Where IT staff is less likely to feel "emotional" attachment to a SAN or working on servers -- and therefore "less likely to feel threatened by an external provider."

Where private cloud services should be created:

1. In companies with a "decade plus of investment in IT staff,  infrastructure and enterprise applications."
2. In industries where "regulatory and financial controls are stricter, more comprehensive and carry greater risk when failure occurs."
3. In risk-averse companies where "business change takes much longer."
4. In organizations with "dedicated staffing for very specific roles, which makes it harder to unify quickly around a major change to infrastructure or applications."
5. Where a larger infrastructure base allows for "deeper staff knowledge and improved economies of scale.'