News & Updates

Cloud General Info IT Support

SaaS vs PaaS vs IaaS

As your business looks to migrate more of its functions onto the cloud, it is more pressing than ever to understand the various forms the cloud takes. These can generally be divided into Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). This article explains the differences and when a business may choose to utilize them.


The majority of the contemporary cloud can be bucketed as SaaS. SaaS is an internet-based cloud form delivered via third-party vendors who manage how users’ applications interact with the cloud. These applications operate within a web browser, meaning that the user needs only make small downloads to access the cloud.

SaaS Advantages

The primary reason to choose SaaS is the ease of setup and maintenance. IT staff do not need to make sizable downloads of applications for all staff to access the cloud. Furthermore, as the vendor manages SaaS clouds, all technical issues will be dealt with by a third party. This lightens the load for IT staff and allows them to concentrate on how the cloud can add the most value.

When is SaaS strong?

SaaS finds its strengths in small projects that need to be launched quickly and in a financially efficient manner. Large businesses will occasionally use SaaS, but only for software used infrequently.


PaaS is a framework that can be consistently applied to applications to allow them to operate on the cloud. This platform is maintained and managed by a third party, while the user’s developers manage and create applications to be applied on the platform.

PaaS Advantages

PaaS offers a more scalable software development method, whereby developers do not need to worry about their hardware storage or capabilities. Instead, they may create software with the room to grow it as needed.

The same is the case for the software that developers are coding within. Not having to create or maintain this software leads to reduced software development work required.

When is PaaS Strong?

PaaS is frequently selected by businesses with a strong development team, as it creates a space for them to conduct work at the limits of their capacities. The endless customisation that PaaS offers for applications created within it is perfect for businesses with changing application requirements. Finally, PaaS reduces the costs and complications associated with creating and deploying applications.


The final major type of cloud is IaaS, which gives users the greatest control of their cloud. IaaS is modeled off of a traditional data centre with self-service cloud infrastructure and full freedom of applications within it. The only point at which IaaS users yield control is that they are outsourcing the powering of their virtual data centre to a third party.

IaaS Advantages

The main reason to choose IaaS is the absolute control of infrastructure and applications that IaaS users possess. This allows them to deploy next-generation technologies within their system, including machine learning and automation. Furthermore, IaaS is highly scalable, and it is far easier to gain more cloud computing power within this environment than to upgrade hardware.

When is IaaS strong?

Iaas has universal appeal regardless of the company’s size, so long as they have access to an excellent IT team. Startups may favour IaaS when they want to save money on hardware costs. Alternatively, large companies enjoy an unmatchable level of control.

Which Cloud Option Should my Business Utilise?

Defining exactly what cloud type to deploy is difficult and based entirely on the needs and means of the business. As defined by this article, all forms of the cloud have excellent capabilities in specific areas, and it is worth expending the energy required to land on the correct cloud form.