As a Service, cloud computing categories

Cloud computing is an umbrella term for computer services (like data storage or application management) that are accessible (and adjustable) over the internet. Within cloud computing, there are several different categories to distinguish. Below we will explain IaaS, SaaS, and aPaaS.

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IaaS stands for Infrastructure as a service. With this model, third parties provide computers (physical of virtual) and other resources regarding the cloud infrastructure. IaaS is also on-demand and it is stored in large data centers. Besides computers, IaaS components also include firewalls, IP-addresses, and VLANs. IaaS providers also often host applications and perform tasks like system maintenance and backups.


SaaS stands for Software as a Service. SaaS is a software distribution model, based on licenses and subscriptions, in which applications are hosted and made accessible for customers over the internet. Sometimes SaaS is also called “on-demand” software because it is accessible where and when needed.


PaaS stands for Platform as a Service. The difference between PaaS and aPaaS (below explained) is minimal. It happens when people mention PaaS, they actually mean aPaaS. PaaS can be seen as the container where aPaaS and Integration as a Service (not to be confused with the above IaaS) fall into. With aPaaS (described below), you can develop applications and use the platform that comes with it. Integration as a Service is a model that ensures complete cloud integration and the possibility of real-time data sharing between systems and any third party.


aPaaS stands for Application Platform as a Service. In this case, it a platform in a cloud environment that includes building, designing, developing and managing (business) web-applications. Besides this, speed and flexibility are components distinctive for an aPaaS platform.

Betty Blocks aPaaS

Betty Blocks belongs within the aPaaS category. With the Betty Blocks platform it’s possible to build (business) applications without coding. It has an intuitive drag-and-drop interface and it’s 8-10 times faster than ‘regular’ developing. In addition, there is always the option to manage own applications or outsource this within Betty Blocks.

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