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What are different types of Cloud Service Models?

Cloud computing has changed the approach that is employed in the storage, management and manipulation of data. Due to the numerous advantages that come with using it, it is difficult to understand why more and more businesses and individuals are adopting the cloud computing system. In this article, we will look at the various cloud models and how they can be of benefit to your work.

Cloud Service Models
Cloud Service Models

What are the types of cloud service models?

Cloud computing offers three main types of service models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

Types of Cloud Service Models
Types of Cloud Service Models

1. Software as a Service (SaaS)

SaaS
SaaS

In SaaS all the hardware, the operating system, and the software are provided to the user by the service provider. This model is suitable for companies which have other important business to attend to and do not want to spend their time and resources on software management and evolution. The best example of SaaS is Google Workspace

Characteristics of SaaS

SaaS has following characteristics :

  • It is controlled from a single place
  • It is located on a distant server
  • It is available online
  • Updates for software and hardware are not the responsibility of users. Updates are implemented automatically.
  • The pay-as-per-use model is used to purchase the services.

Advantages of SaaS

  • Easy to set up and start using
  • The provider manages and maintains everything, from hardware to software
  • Software is accessible over any internet connection on any device

Disadvantages of SaaS

  • No control over any of the infrastructure or security controls
  • Integration issues with your existing tools and applications
  • Vendor lock-in may be an issue depending on the cloud service provider
  • Little to no customization

2. Platform as a Service (PaaS)

PaaS
PaaS

PaaS offers the whole infrastructure and the operating system layer and thus releases business from the burden of application creation and deployment. This model is beneficial to companies which wish to develop their own applications but do not wish to trouble themselves with the provision of the necessary infrastructure. The best example of PaaS is App Engine and Cloud Run

Characteristics of PaaS

PaaS has following characteristics :

  • It is accessible using the same development application by several users.
  • It connects to databases and web services.
  • It is built on virtualization technology, making it simple to scale resources up or down to meet the needs of the company.
  • It supports a variety of frameworks and languages.
  • It offers the option to “Auto-scale”

Advantages of PaaS

  • Instant access to a complete, easy-to-use development platform
  • Cloud service provider is responsible for maintenance and securing infrastructure
  • Available over any internet connection on any device
  • On-demand scalability

Disadvantages of PaaS

  • Application stack can be limited to the most relevant components
  • Vendor lock-in may be an issue depending on the cloud service provider
  • Less control over operations and the overall infrastructure
  • More limited customizations

3. Infrastructure as a Service (IaaS)

IaaS
IaaS

It offers some or all of the infrastructure layers and offers the client complete control over his infrastructure. This model is suitable for organizations that wish to undertake a tailored approach to the design of their infrastructure. The best example of IaaS is Compute Engine.

Characteristics of IaaS

IaaS has following characteristics:

  • Resources are offered as services.
  • Services are very scalable.
  • Flexible and dynamic access via GUI and API
  • Administrative duties that are automated

Advantages of IaaS

  • Highest level of control over infrastructure
  • On-demand scalability
  • No single point of failure for higher reliability
  • Reduced upfront capital expenditures (for example, pay-as-you-go pricing)
  • Fewer provisioning delays and wasted resources
  • Accelerated development and time to market

Disadvantages of IaaS

  • Responsible for your own data security and recovery
  • Requires hands-on configuration and maintenance
  • Difficulties securing legacy applications on cloud-based infrastructure

Difference between SaaS, PaaS and SaaS

Difference between Saas, PaaS and IaaS
Difference between Saas, PaaS and IaaS
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