The three pillars of cloud architecture

The cloud computing within enterprises is being considered as a major change in IT companies for their ability to take the physical limitations of the technology infrastructure of a business and give more space department to market strategies adjustments, cost optimization and market view.

It is essential for IT planning to take into account three layers of cloud computing, known as the main modalities of this technology.

See what each of these acronyms means and why differentiating them is essential for your migration to be done responsibly and making the most of your investment in innovation:

SaaS
The Software as a Service , or Software as a Service is the solution most used among the three pillars of cloud architecture. In this model, software houses make their software available directly on the internet through a website, which can be accessed from anywhere, anytime by accredited employees.

The advantage of SaaS is its practicality. The customer (in this case, the company that uses the software) no longer has to deal with licenses, updates and maintenance of the program on their system. The tool is available 24 hours a day, as long as the professional accesses the site through the browser.

As in other modalities, it is important to analyze the system to be hired from the point of view of customization and integration that the company requires. Some cloud or local software has closed and standardized systems, with little space for customizing the software according to your needs. Some also do not have integration with other tools, another factor to be taken into account depending on the purpose of using the contracted system.

PaaS
In the case of Platform as a Service , or Platform as a Service, the focus of IT is more on development than on the operation of a business and is very little used by end customers who just want to migrate their existing systems to the cloud .

The PaaS is made for those who want to develop a technology or based on the software platform chosen, such as .Net, Java, Android, among others. This pillar is mainly used as a basis for hosting and implementing the tools that will be distributed as SaaS.

Within a company, PaaS can be the development solution for proprietary software available in the cloud. When the market options are few or very limited in the customizations that a specific business needs, the IT manager decides to develop the tool in-house, using the cloud to make it available to all employees involved in the operation.

IaaS
The Infrastructure as a Service , or Infrastructure as a Service, is perhaps the most important pillar because it is what makes possible the implementation of the other two in a centralized, streamlined and efficient.

The concept of IaaS is to replace the on-premises IT infrastructure with an outsourced cloud service. In this way, the business eliminates fixed capital in hardware and software and gains flexibility and savings by having an environment that is always adequate to the demand of the moment.

Good IaaS providers allow you to host your entire system: local data processing centers, hardware, network, virtualization, operating systems and databases. In addition to the structure, they also offer specialized teams to support local IT.

Most importantly in terms of cloud architecture, IaaS serves as an umbrella for PaaS and SaaS. The cloud computing infrastructure can centralize and integrate all of these solutions in a single, flexible and economical environment.

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