The popularity and rapid adoption of Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS) by a number of organizations has impacted internal IT / IS departments. These services provide a virtualization infrastructure that covers data storage, networking, desktop computing, mobile computing, and so on. Write a two to three (2-3) page paper in which you: Describe at least three (3) items that an organization’s IT / IS department should consider when an organization’s 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). Create SaaS, PaaS, and IaaS architectural diagrams using Microsoft Visio or an equivalent such as Dia. Note: The graphically depicted solution is not included in the required page length. Examine the impact to the IT support personnel when an organization embarks on the strategy stated in Question 1. Analyze three (3) considerations that the organization’s management should be aware of. Examine three (3) security issues that could arise from this type of an infrastructure. Use at least three (3) quality resources in this assignment. Note: Wikipedia and similar Websites do not qualify as quality resources. The paper must follow these formatting requirements: Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA. The paper will be checked for plagiarism so it must be original.