Chapter 5. Billing and Procurement

Key topics in this chapter:

  • Capital versus operational expenses

  • Concerns with the “build it and they will come” model

  • Ordering cloud services, procurement challenges in an automated service catalog

  • Fixed price XaaS versus variable scaling and pricing

  • Metering versus allocated pricing models

  • Cloud billing versus accounting and invoicing systems

  • Usage forecasting

  • Legal and contract agreements

  • Top cloud providers

  • Billing and procurement best practices

Cloud services represent not only a new style of delivering IT services, but also a change in the way they are procured, resource usage is measured, billing is carried out, and the way organizations maintain budgets. In this chapter, I focus on lessons learned and best practices relating to the resource tracking, billing, contract terms, and public cloud vendor guidance. This chapter covers topics relating to both a private enterprise cloud and also procuring public cloud services as many organizations consider or end up with a combination of both cloud models.

Because some large organizations serve as a central IT for other departments or peer agencies, this would put central IT into a cloud service brokering role—making these other departments or agencies essentially “customers,” which is a term that will sometimes be used in this chapter. You can read a full description of cloud brokering in Chapter 8.

Capital Versus Operational Expenses

We begin this chapter with a brief ...

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