We talk to businesses every day who are considering a transition from an on-premise eCommerce application to a Cloud-based model.

Many of these businesses are looking to take advantage of the scalability and flexibility a Cloud-based eCommerce solution provides while avoiding time-consuming IT processes. When considering your Cloud options, it’s important to understand the different service models and their benefits.

“As a Service” Cloud Models

You might have heard of SaaS (Software as a Service) or IaaS (Infrastructure as a Service) or even PaaS (Platform as a Service) but weren’t sure what they stood for. All three of these Cloud models streamline the configuration, deployment, and management of infrastructure and applications, but in different ways.

The chart below illustrates the various Cloud models and what aspects you manage compared to a traditional on-premise model.

Breaking Down the Differences

In simple terms, the first letter of each model stands for whatever is available quickly and accessible from multiple devices through a Cloud network. It’s important to note that you aren’t confined to using just one model, many businesses use a combination of SaaS and IaaS Cloud computing service models.

Service

Delivery

Characteristics

Advantages

Infrastructure as a Service (IaaS)

Over the Internet

  • Provides Cloud-based centralized services including storage, networking and virtualization
  • Client is responsible for applications, data, middleware
  • Self-service access & monitoring
  • Pay-as-you-use payment model
  • Gives users automated and scalable environments with extreme flexibility and control
  • Cost-effective - pay for what you need when you need it
  • Great for any size business

Platform as a Service (PaaS)

Over the Internet

  • Provides hardware and software tools available over the Internet
  • Virtualized for easy scale up or down
  • Used by developers creating applications that don’t want to start from scratch
  • Client or 3rd party can manage servers, storage and networking
  • Good framework for quickly developing and deploying applications by automating infrastructure provisioning and management
  • Accessibility
  • Scalability

Software as a Service (SaaS)

Over the Internet

  • 3rd party software provided over the Internet
  • Accessible from any device, anytime (barring you have a connection)
  • Typically, fixed monthly subscription fee
  • Not responsible for hardware or software updates
  • Simple setup - eliminates need to install and run programs on individual devices
  • Scalability
  • Accessibility
  • Offering includes security, compliance and maintenance
  • Cost-effective

Conclusion: SaaS vs PaaS vs IaaS

Each Cloud model offers many benefits that on-premise models simply cannot. However, each model comes with different features, functionalities and limitations that may or may not fit with your organizational needs. No matter which option or combination of options you choose, migrating your eCommerce business application to The Cloud is worth your serious consideration.

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