Cloud services comes in more than one flavor.You need to decide which one is need for your project or company.
Infrastructure as a Service-IAAS
Infrastructure as a Service (IaaS) products generally simulate the look and feel you’d get from managing physical resources. IaaS products give you direct access to a provider’s compute, storage, and networking assets. Because it’s you that’s in there playing around at the hardware level,you rather than the IaaS provider are responsible for the consequences of any bad configurations. The trade-off is that you get to closely configure every layer of your operating stack.
Platform as a Service-PAAS
Unlike IaaS, Platform as a Service (PaaS) products simplify the process of building an application by hiding the complexity of the infrastructure that runs it. You’re given an interface through which you define the behavior and environment you want for your application.This will often include the code that will run your application
Software as a Service-SAAS
Software as a Service (SaaS) products offer services meant to be accessed by end users. An easily recognizable illustration is Google’s Gmail service, which allows users to manage their email by logging in to a browser interface or through an email client (like Microsoft Outlook) that’s running locally.
