19  Chapter 2: Digging Deeper into IaaS and PaaS A company selecting a private approach creates a pool of  resources that can be standardized and easily reused by the  IT organization to complete projects. Why standardize? In an  IaaS service, IT projects are created in predictable ways. For example, a process may be designed to set up a test environment for code or provision storage to support an  application. While certain nuances are different, 80 percent of the time the process within IaaS can be standardized. By  standardizing these infrastructure services, the organization  gains efficiencies, fewer inadvertent errors, and consistency  in managing the development lifecycle. This is the same  approach used by a public IaaS vendor to control its costs. Companies use IaaS for a variety of projects. Here are a few  examples: Knowing how companies use IaaS ✓ A manufacturer needs a development infrastructure for  its enterprise resource planning application. It decides  to use a public IaaS service to provision development  and test environments for the system in an “on demand”  fashion. The public IaaS gives it the operational flexibility  it needs to provision and de-provision infrastructure  instead of constantly having to ask IT for server capacity. ✓ An insurance company needs a cost-effective compute  infrastructure to run quarterly and yearly risk reports.  During this peak time, its compute usage may be several  times greater than normally would be needed. The insurance company doesn’t want to over-invest in capacity that’s only sporadically needed. It contracts  with a secure public cloud IaaS to manage peak loads. ✓ A large retailer decides to deploy a private cloud IaaS  to provide capacity on demand for its portfolio of retail  applications that it offers as a service to a set of small  retailers. It has its own in-house staff of application  developers who often need more capacity than it has in  its development environment for testing purposes. IaaS  provides this compute capacity, as required. The different companies all realized critical benefits from  using IaaS: These materials are the copyright of John Wiley & Sons, Inc. and any  dissemination, distribution, or unauthorized use is strictly prohibited.