In your current business environment, or one you were in at one time, which of t

In your current business environment, or one you were in at one time, which of the four cloud computing service models do you think might be good for that company to consider?
How would you implement specific cloud computing service models in order to change the way that company does business?
I work at ManTech International Corporation.
Articles, Websites, and Video References:
Ristov, S., Gusev, M., & Kostoska, M. (2012). Cloud computing security in business information systems.
Types of cloud computing. (n.d.). Amazon Cloud Services.