1. Design Requirements
   1. On Demand Self Service
   2. Broad Network Access
   3. Resource Pooling
   4. Rapid Elasticity
   5. Measured Service
   6. NIST SP 800-145/ISO 17788
2. Software Models
   1. Software as a Service (SaaS)
      1. Customer Responsibility
         1. Limited Admin Control - Application
         2. User Level Control - Application
      2. Provider Responsiblity
         1. Admin Control - Application
         2. Total Control - Middleware, OS, Hardware
   2. Platform as a Service (PaaS)
      1. Customer Responsibility
         1. Admin Control - Application
         2. Program to Interfaces - Middleware
      2. Provider Responsibility
         1. Admin Control - Middleware
         2. Total Control - OS and Hardware
   3. Infrastructure as a Service (IaaS)
      1. Customer Responsiblity
         1. Total Control - Application,Middleware, Guest OS
         2. Make Requests - Hypervisor
      2. Provider Responsibility
         1. Admin Control - Hypervisor
         2. Total Control - Hypervisor
3. Deployment Models
   1. Private Cloud
      1. On Site Private
      2. Outsourced Private
   2. Public Cloud
   3. Community Cloud
   4. Hybrid Cloud
4. NIST SP 800-146/ISO 17789