There are typically three concepts of cloud services: software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS). Be it IaaS, SaaS, or PaaS, each has its own intricacies, but today we’ll help you differentiate SaaS, PaaS, and IaaS.
SaaS – Software as a Service is generally charged based on the number of users, and charges are monthly or yearly. Organizations have the ability to add or remove users at any time at no additional cost. Some of the most famous SaaS solutions are Microsoft Office365, SalesForce, Google Apps. It is the responsibility of SaaS providers to manage server, network, and security-related threats. It helps organizations reduce the cost of software ownership by eliminating the need for technical staff to manage the installation, maintenance and updating of software and reducing the cost of licensing software.
PaaS – Platform as a Service, A cloud service that typically provides a platform on which software can be developed and deployed, in short, it provides the software developer with a platform.
PaaS reduces the amount of coding required, automates corporate policies, and supports the migration of apps to hybrid clouds. PaaS allows users to better manage servers, storage, networks, and operating systems in general. All apps built with PaaS include characteristics of the cloud, such as scalability, availability and multi-tenancy. In addition, it is faster and cheaper to build, test and launch apps.
PaaS uses the infrastructure services and adds software platform services. The basic idea is to help the application developer to his core competence and relieve him from dealing with the application hosting platform. PaaS providers are more responsible for handling servers and their main task is to provide customers with an environment in which to maintain the operating system and server software, as well as the server hardware and network infrastructure. This helps users focus on the business side of scalability and application development of their product or service.
IaaS – Infrastructure as a Service – A cloud service that allows users to access their own infrastructure – computers, network resources, storage. These can typically be virtual resources, but could also be real physical resources.
This is the most basic of the service offerings. The service provider has to take care of these devices or virtual machines including all services they depend on, e.g. B. Network, hardware or operating system patches. This basic service is interesting for a number of applications, especially for highly customized software that does not work on PaaS or cannot be fulfilled at all by SaaS. The downside is that this service requires the user to have proper experts on all the ancillary technologies like operating systems and more. This type of service offers greater flexibility for any online software, but it also requires a higher level of technical skills in the different fields.
Many IaaS providers are now also offering databases, messaging queues and other services on top of the virtualization layer. Users benefit from IaaS because they get a bare metal infrastructure on which to install any platform they need.
With this article, we aim to outline what cloud computing is, how we use it, and how it can help our customers benefit from it.