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Cloud Cost metrics:

There are many important metrics to consider when evaluating cloud computing services. I have mentioned few of them below.

Service Cost: In service cost, you have to make sure to include the total cost over time in a way that can be compared. This means including things like transition costs as well as defining a realistic sample configuration for each service and pricing it on each one.

Financial Predictability: Paying for what you use sounds great until the CFO asks you what next month's bill will be and you have to say "it depends." Sometimes that's okay, bust sometimes it's not acceptable, and you need a mechanism to control and predict what you'll be paying.

Pricing Model in the Cloud:

The pricing in Cloud Computing has its root in system design and optimization. Resource's consumption based pricing is particularly sensitive to how a system is designed, configured, optimized, monitored, and measured. Cloud services vendors use a variety of pricing mechanisms, including usage-based fixed pricing, usage-based dynamic pricing, subscription - based pricing, reserved services contracts with a combination of usage-based fixed pricing and up-front fees, auction-based pricing. Also pricing is more important in economic as fairness and competitive pricing in a multi-provider marketplace affect the actual pricing. Pricing presents exchange process when customer/end user pays for services which have been offered by the service provider.

Some of these factors that influence the price of cloud resources:

Monitoring Service: Few cloud providers have the confidence to provide customers with monitoring tools for service availability. Monitoring services could be managed from the providers or a third party.

Social Category of Customers: all clients should be offered a fair price, however, it should be viewed social aspect of clients or social classifications. Classification should be done depending on client's location.

Cost of Data Center: The price should be calculated for data centers, as cost of real estate, backup power, maintenance, cooling resources, network connectivity, security features etc.

User Reputation: The reputation of the users has a special importance in cloud services considering various attacks, sniffing programs, Trojans etc.

Provider Reputation: Cloud provider's reputation is also necessary to create a trust from the community when it is known that may have sensitive data. The reputation is the component of trust and it also measures reliability. Using Cloud infrastructure for critical business computation necessitate that the reputation of the Cloud provider is well established.

Public Review: Public reviews on issues such as downtime, phishing, and data loss and password weakness can be valuable in pricing of cloud services.

SLA (Serice Level Agreement): SLA is a negotiated agreement for services between Cloud providers and cloud customers. Most often SLAs are dictated by the Cloud Providers.

Co-Cloud Users: the nature of multi-tenancy in a Cloud cloud enable competitive companies to use the same Cloud platform. Information about co-tenants in the Cloud can be used to influence service price.

The service price could be affected if the information about co-tenants in the Cloud is used.