## In This Chapter 

▶ Understanding IaaS 

▶ Diving into PaaS 

▶ Defining the requirements for IaaS and PaaS 

## Digging Deeper into IaaS and PaaS 

## Chapter 2 

I n this chapter, you look at Infrastructure as a Service (IaaS) and Platform as a Service (PaaS) — two foundational cloud delivery services. Both of these services provide flexibility that enables companies to respond faster to their constituents’ needs. 

IaaS can serve two purposes: 

✓ It can be a highly practical solution for companies that want access to resources in an on-demand manner. 

✓ IaaS can also be used effectively to augment data center services, either to increase capacity when needed, to replace aging hardware with cloud-based services, or to provide ongoing access to sophisticated services, such as advanced analytics. 

A service model can enable a company to efficiently and effectively gain access to ongoing support as the business changes. In addition, IaaS can allow the business to freely experiment with new innovative software approaches without impacting the budget. 

