Advances, Systems and Applications
Table 6 Additional Cost Items Not Included in Provider Calculators
Cost Item | Public Cloud | Private Cloud | Relevance |
|---|---|---|---|
Architecture & Project Management | |||
 Solution Architecture | √ | √ | The work required to ensure the application, infrastructure, data and service management solution are cohesive. |
 Project Management | √ | √ | Project Managers are charged with planning, budgeting and resourcing. |
Network Connectivity, Security | |||
 Security Services | √ | √ | Provides consideration for new firewall, anti-virus or Denial of Service |
 DNS Services | √ | √ | A scalable and highly available domain name that is part of a public or private cloud platform service |
 Database as a Service | √ | √ | An example of a custom entry in the cost model |
 Connectivity to a private network | X | √ | Local access from a data centre to the client’s private network |
Monitoring & Management | |||
 Lifecycle Management | √ | X | It is an IT Asset lifecycle is a sequence of events to determine if the asset requires refresh or replacement |
 Automation Components | √ | √ | Components used to automate a manual process or part thereof. |
 Governance of resources | √ | √ | A method of providing role-based access for rights for the provisioning of cloud resources. |
Commercial Considerations | |||
 PAYG Commercial Model | √ | X | A flexible payment arrangement that provides consumption on a granular basis |
 Reserved Instances Commercial Model | √ | X | A dedicated resource is a reservation of resources and capacity typically over a multi-year commitment in public cloud. |
 Managed Private Cloud providing a 30% resource overhead to the baseline requirement | X | √ | We have used a heuristic of 30% that balances elasticity, peak loads, professional services cost and overhead in the private cloud to account |
 Elasticity of Public Cloud | √ | X | Enable periodic or seasonal requirements for elasticity in public cloud to be captured to balance this against the resource overhead in Managed Private Cloud |
 High Availability | √ | √ | Public Cloud and Managed Cloud providers will have dependencies upon components to meet high availability requirements. |
 Custom Items | √ | √ | Any items considered important by the Cloud Adopter to be included that are above the IaaS layer and specific to a public or private cloud. |