Describe at least three items that an organizations IT / IS department should consider when an organizations strategy calls for the use of SaaS, PaaS, or IaaS. Evaluate the ways that SaaS, PaaS, and IaaS are used to reduce Total Cost of Ownership (TCO) and increase Return on Investment (ROI). Examine the impact to the IT support personnel when an organization embarks on the strategy stated in Question 1. Analyze three considerations that the organizations management should be aware of. Examine three security issues that could arise from this type of an infrastructure.