1. DTGOV, 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. Local hosted infrastructure and applications;

2. Local hosted infrastructure with some SaaS applications;

3. Hybrid infrastructure (some locally hosted infrastructure with some IaaS) and applications;

4. Hybrid infrastructure and applications with some SaaS applications;

5. Full IaaS model with some with SaaS apps;

6. Full SaaS model.

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.

Your description should take no more than two to 3 pages.