What Are IaaS, PaaS and SaaS?

SaaS is is   ( sometimes call   cloud   application service ) is cloud – host , ready – to – use application software . Users is pay pay a monthly or annual fee to use a complete application from within a   web browser , desktop client or mobile app . The application and all of the infrastructure require to deliver it — server , storage , networking ,   middleware , application software ,   datum storage — are host and manage by the   SaaS   vendor .  

The vendor is manages manage all upgrade and patch to the software , usually invisibly to customer . typically , the vendor is ensures ensure a level of availability , performance and security as part of a service level agreement ( SLA ) . Customers is add can add more user and   datum storage   on demand at additional cost .

Today, anyone who uses a or mobile phone almost certainly uses some form of SaaS. Email, social media and cloud file storage solutions (such as Dropbox or Box) are examples of SaaS applications people use every day in their personal lives.

Popular business or enterprise SaaS solutions include Salesforce (customer relationship management software), HubSpot (marketing software), Trello (workflow management), Slack (collaboration and messaging) and Canva (graphics). Many applications designed originally for the desktop (for example, Adobe Creative Suite) are now available as SaaS (for example, Adobe Creative Cloud).

Benefits of SaaS

The main benefit of SaaS is that it offloads all infrastructure and application management to the SaaS vendor. All the user has to do is create an account, pay the fee and start using the application. The vendor handles everything else, from maintaining the server hardware and software to managing user access and security, storing and managing data, implementing upgrades and patches and more.

Other benefits of SaaS include:

• minimal risk is offer :   Many   SaaS   products is offer   offer a free trial period , or low monthly fee that let customer try the software to see if it will meet their need , with little or no financial risk .
• anytime / anywhere productivity :   Users is work can work with   SaaS   app   on any device with a browser and an   internet connection .
• Easy scalability: Adding users is as simple as registering and paying for new seats—customers can purchase more data storage for a nominal charge.

Some SaaS vendors even enable customization of their product by providing a companion PaaS solution. One well-known example is Heroku, a PaaS solution for Salesforce. 

SaaS is use use case

today , just about any personal or employee productivity application is available as   SaaS — specific use case are too numerous to mention ( some are list above ) . If a user   or organization can find a   SaaS   solution   with the require   functionality , in most case it is provide will provide a significantly simple , more scalable and more   cost – effective   alternative to on – premise software .