Common Cloud Service Models

Common Cloud Service Models

Cloud services are typically deployed based on the end-user (business) requirements. The primary services include the following:




Common Cloud Service Models, cloud, cloud service



  1. 1.Software as a Service (SaaS)

SaaS is a software delivery method that provides access to software and its functions remotely as a Web-based service.  Instead of paying an upfront fee to purchase and/or license software, SaaS customers pay a recurring (often monthly or annual) fee to subscribe to the service. In general, they can access the SaaS from any Internet-connected device, any time day or night. Well-known examples of SaaS include Google G Suite, Dropbox, Adobe Creative Cloud, Microsoft Office 365, Salesforce.com,  and others.


  1. 2. Platform as a Service (PaaS)

PaaS is  a computing platform being delivered as a service. Here the platform is outsourced in place of a company or data center purchasing and managing its own hardware and software layers. Most PaaSes are designed for developers and aim to simplify the process of creating and deploying software. For example, a Web developer might use a PaaS that includes operating system software, Web server software, a database and related Web development tools. The leading PaaS vendors include Amazon Web Services, Microsoft Azure, IBM and Google Cloud Platform.


  1. 3. Infrastructure as a Service (IaaS)

Computer infrastructure, such as servers, storage and networking delivered as a service.  IaaS is popular with enterprises that appreciate the convenience of having the cloud vendor manage their IT infrastructure. They also sometimes see cost savings as a result of paying only for the computing resources they use. The leading IaaS vendors include Amazon Web Services, Microsoft Azure, IBM and Google Cloud Platform.

While SaaS, PaaS & IaaS are the three most common types of cloud services, cloud computing vendors sometimes also use other "as a service" labels to describe their offerings. For example, some offer database as a service (DBaaS), mobile back-end as a service (MBaaS), functions as a service (FaaS) or others.

Benefits of Cloud Computing

Consumers and organizations have many different reasons for choosing to use cloud computing services. They might include the following:

  • Anytime, anywhere access
  • Convenience
  • Low costs
  • Security
  • Scalability
  • High availability

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