InstructionDTGOV, the department in our case study, wants to investigate moving to a service-based model where many of its services would be supplied to its clients as a service, in addition to its plans to move to an IaaS model (See the DTGOV Roadmap and Implementation Strategy (Erl, Mahmood, & Puttini, 2013, p. 19)). There are a number of infrastructure models that could possibly be used to achieve this. Some of these models are: 1.)Hybrid infrastructure and applications with some SaaS applications; 2.) Full IaaS model with some with SaaS apps 3.) Full SaaS model. 4.) Local hosted infrastructure and applications You are required to choose an infrastructure model that you think will achieve the DTGOV Roadmap; Describe the benefits and drawbacks, excluding costs, of your chosen infrastructure model. Why are the others not chosen? Your description should take no more than two to 3 pages. APA format should be used.