What is SaaS ?
Software as a service is the most prevalent form of cloud computing where a cloud provider offers licensed software on a subscription basis (monthly subscription or annual, for example based on the number of users) and hosts it centrally on the internet for enterprises.
IaaS, PaaS, SaaS difference
Public cloud is built on the three service levels infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS) that deliver virtualized IT infrastructure. Like all cloud-computing services, they can be dynamically adapted to the specific needs of users.
Infrastructure as service (IaaS)
This level is kind of the basis, since hardware resources or computing instances such as memory or processors are available virtualized and can be added or reduced in any number. In many cases, the term virtual data center is therefore also commonly used.
Benefits of IaaS:
- It helps in cost savings. Since hardware in particular is expensive to purchase, it has to be set up with due consideration for IT security. It also gets outdated very quickly. Moreover, managing hardware means managing adequate spare and RMA. Updating an outdated hardware means tedious software migration, which can be avoided with IaaS. Therefore, virtualized IT resources, provided on demand are therefore, very attractive for enterprises.
- Cloud providers let clients pay based on an as-needed basis and scale resources based on their evolving needs.
Platform as a service (PaaS)
PaaS includes additional services to IaaS. Apart from the servers, data storage, networks, and datacenter, the users also rent all middleware applications like operating system, database, etc. The vendor then takes care of the configuration. This level is particularly interesting for software developers because it acts as a connector by providing the environments for developing software based on IaaS architecture based operating systems.
Benefits of PaaS:
- Organizations can use the same environment to test, develop and host their applications.
- They do not have to worry about managing security of third party applications.
Software as a Service (SaaS)
How SaaS works?
At this level, users are provided with programs via a browser according to their needs, which means savings in software license fees and installation and administration costs.
Benefits of SaaS:
- The main advantage is that organizations do not have to worry about managing, installing, scaling or software updates.
- They can access their applications from any device in any part of the world.
The history of a revolutionary SaaS companySalesforce is one of the most successful SaaS software companies in the world, and they have a very fascinating history. During the late 1990s, the concept of cloud computing was nonexistent. Marc Benioff and his three co-founders had a vision — to extend the accessibility of a CRM software to their customers, anytime and anywhere they want, through a worldwide cloud-computing infrastructure. They took on behemoths like SAP and Oracle. This groundbreaking idea took the entire software industry by the storm. In the coming years, the industry flourished tremendously. Salesforce gained numerous investors, added more services and products to their portfolio, and expanded their markets. To this day, they continue to reign the SaaS cloud market, with a significant amount of customer acquisitions each year. Their recent acquisition of Slack, a popular collaboration as a service platform, further strengthens their foothold in the market, by addressing every possible business need of their customers.
Netflix modelAmong other leading SaaS solution providers is Netflix, an online movie streaming service provider. The subscription based business model really works in their favor to drive up their revenues. Netflix has effective methodologies in place, to test its cloud automation and cloud resilience capabilities. They use chaos engineering to disable some of their own virtual machines randomly. They want to make sure they can survive such situations of failure, and respond to it without any impact on their customers. Therefore, to be a good SaaS provider, you need to think about everything and be prepared, if chaos strikes. Thanks to such innovative companies, we can the leverage the greatness of the SaaS ecosystem today.
Difference : SaaS and Cloud?
SaaS and cloud are not the same thing. Both do not require exhaustive installations, updates, and maintenance. However, SaaS is only a part of the cloud universe. With a WAF deployed in a cloud marketplace, you have to manage the software and its updates on a third party server but with a SaaS offer, you do not have to bear the responsibility of application management. It is true that you have more control with the cloud. However, if you need an economical solution for your business, then SaaS is the way to go.
Why choose R&S®Cloud Protector ?
A full SaaS platform to manage your critical applications in today’s multi-cloud world
R&S®Cloud Protector is a fine example of a SaaS offer, deployed, and maintained by the provider with no installation requirements by the customer. Rohde & Schwarz Cybersecurity chose the SaaS model to deliver its capabilities to the customer, due to its ease of implementation and configuration.
You just have to redirect your application traffic to the hosted IT infrastructure. If there is a surge in the web traffic, it quickly rises to the challenge and scales up to meet your additional needs. The infrastructure takes care of scaling, software updates and monitors platforms. Thus, it has very little overhead regarding upfront costs or other investments.
This offering often comes with a myriad of other advantages like DDoS protection against volumetric attacks and swift response to the OWASP Top 10. In addition, the SaaS subscription pricing based on consumption makes it an ideal and flexible solution. With R&S®Cloud Protector, the goal is to bring innovative products and services more quickly to the customers. And the experts in the team ensure this by driving shorter and more effective feedback loops.
Moreover, being hosted in European datacenters, R&S®Cloud Protector guarantees first class hosting with the maximum possible security level and ensures compliance with European data protection rules.
 Source Gartner