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When it comes to SaaS, I can tell you it's a form of cloud computing that provides virtualized computing resources over the internet, and as for SaaS - it's software that is centrally hosted and managed for the end customer, like office 365. But I can tell you that the security of these categories still requires some improvement, and that's why even when we're talking about google workspace security, it's better to work with special companies to avoid data leakage.
Infrastructure as a Service:
- Infrastructure as a Service is the most flexible category of cloud services. It aims to give you complete control over the hardware that runs your application (IT infrastructure servers and virtual machines (VMs), storage, networks, and operating systems).
- There are no upfront costs. Users pay only for what they consume.
- The user is responsible for the purchase, installation, configuration, and management of their own software operating systems, middleware, and applications.
Software as a service:
- SaaS is software that is centrally hosted and managed for the end customer. Office 365, Skype, and Dynamics CRM Online are examples of SaaS software.
- Users have no upfront costs; they pay a subscription, typically on a monthly or annual basis.
- Users just use the application software; they are not responsible for any maintenance or management of that software.
Software as a Service (Saas):
Starting at the highest level of abstraction, we have Software as a Service (Saas). In this model, the whole shebang is in the vendor’s hands and you just use the service. These providers range from enormous enterprise-level software offerings like Gmail and Office365 Online down to micro-SaaS providers like one of my personal favorites: Freckle, which provides time-tracking for freelancers and teams. At this level, there is no installation of software, no updates, etc., just open your browser and go.
Infrastructure as a Service (IaaS):
Further down the chain of abstraction we have Infrastructure as a Service (IaaS) providers. We run into the heavy iron here: Amazon Web Services, Microsoft Azure, and Google Cloud are the three dominant players, with IBM and VMWare playing catch-up. Here, the line between what you are doing and what the provider is doing gets thinner. You are typically using virtual machines on someone else’s servers rather than servers of your own. Which, of course, allows your servers to be anywhere your provider has a data center, allowing for lower latency, scaling, etc.
Software as a service (SaaS) is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet. For example Telecommunications carriers offer this service to small business companies for accounting and other business applications services.
Infrastructure as a service (IaaS) is the basic layer in cloud computing model. Some examples of infrastructure as a service are: DigitalOcean, , Amazon Web Services (AWS), Microsoft Azure, Google Compute Engine.
In the IAAS example, companies may choose their own applications and use the IaaS cloud service provider as a hosting platform only (renting storage and computing space from the service providers.
SIMPLE TO UNDERSTAND WITH ITS DEFINITION:
Software as a service (SaaS) is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet.
Infrastructure as a service (IaaS) is a form of cloud computing that provides virtualized computing resources over the internet.
I hope it is cleared to you.
