SAAS in Cloud Computing

Nov 24,2022 by Tarandeep Kaur
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The Software-as-a-Service (SaaS) concept enables offering software applications to customers as a service. It describes a piece of software that is installed on a host service and is accessed online. The following is a list of various SaaS applications:

Applications for Customer Relationship Management (CRM) Billing and invoicing systems

  • Help desk software
  • solutions for human resources (HR)
  • Some SaaS products, like the Microsoft Office Suite, cannot be customised.
  •  The Application Programming Interface (API) offered by SaaS, however, enables the creation of specialised applications by developers.

Characteristics of Saas as the best cloud hosting services

The following are the traits of the SaaS service model:

SaaS makes the software accessible online.

The seller looks after the software programmes.

The software licence could be subscription-based or usage-based. Additionally, the charge is reoccurring.

SaaS applications are affordable since they don’t need any end-user maintenance.

They are accessible upon request.

On demand, they can be scaled up or down.

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They are continuously updated and upgraded.

Shared data model is offered via SaaS. As a result, numerous users can share a single infrastructure instance. Hard coding the functionality for specific users is not necessary.

The same software version is used by all users.


SaaS usage has shown to be advantageous in terms of performance, efficiency, and scalability. Here are a few of the advantages:

small-scale software tools

effective software licence usage

Platform administration and centralised management tasks are handled by the provider.

Multitenant approaches

Small-scale software tools

The following advantages result from the SaaS application deployment’s minimal or nonexistent client side software installation requirement:

There is no demand for sophisticated client-side software packages.

Client-side configuration poses little to no risk.

low cost of distribution

1. Effective software licence usage

The cost of licencing is decreased because the customer can use a single licence for numerous machines operating at various locations. Because the software runs on the infrastructure of the provider, licence servers are not necessary.

2. Centralised data and management

Data is centrally stored by the cloud provider. For the sake of reliability and redundancy, cloud service providers may choose to store data in a decentralised manner.

3. Providers are responsible for platform management

The cloud provider handles all platform tasks like backups, system upkeep, security, hardware replacement, power management, etc. The client doesn’t have to worry about them.

Web-based dangers

Customers’ data may be compromised if they use a SaaS application after visiting a malicious website and infecting their browser.

The consumer can use numerous browsers, designate one browser specifically for accessing SaaS apps, or utilise virtual desktops while accessing SaaS applications to avoid these dangers.

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Networking reliance

Only when the network is continually available can the SaaS application be delivered. The network should also be dependable, but neither the cloud provider nor the consumer can ensure this.

SaaS clouds are not portable between them.

Workloads might be provider specific in terms of work flow, business logics, user interfaces, and support scripts, making it difficult to transfer workloads from one SaaS cloud to another.

SOA and open SaaS

These SaaS apps created with open source programming languages are used by open SaaS. Any open source operating system and database can be used to run these SaaS apps. Open SaaS has the following advantages:

Saas in cloud computing benefits layer 

1: SaaS is simple to purchase

Business functionality can be accessed by companies at a cheap cost, which is less expensive than licenced programmes, thanks to SaaS pricing, which is based on a monthly or annual price subscription.

SaaS suppliers typically charge a subscription fee for the use of the apps, most frequently a monthly or annual price. This is in contrast to traditional software, which is offered as licenced basis with an upfront cost (and frequently an optional ongoing maintenance fee).

2. Many to One

One-to-many models, which are how SaaS services are provided, allow several users to share a single instance of the programme.

3. SaaS requires less hardware.

Since the software is remotely hosted, businesses do not need to make supplemental hardware investments.

4. SaaS requires little upkeep

For enterprises, software as a service eliminates the need for installation, configuration, and ongoing maintenance. SaaS typically has lower initial setup costs than enterprise software. Vendors of software as a service (SaaS) base the price of their applications on usage factors like the number of users. SaaS offers automatic updates and is thus simple to monitor.

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5. No need for certain hardware or software versions

The software will be available to all users in the same version, and they will normally access it through a web browser. By contracting out the upkeep and support of hardware and software to the IaaS provider, SaaS lowers the cost of IT support.

6. Multi-device assistance

Any device, including PCs, laptops, tablets, phones, and thin clients, can access SaaS services.

7. Integration of API

Through common APIs, SaaS services are simple to combine with other programmes or services.

8. No installation on the client side

SaaS services don’t need to require any software installation because they can be accessed directly from the service provider using an internet connection.

SaaS cloud computing disadvantages layer

 1: security

Security may be a concern for certain users because data is actually kept in the cloud. However, compared to internal deployment, cloud computing is not more secure.

2) Delayed reaction

In comparison to local deployment, there is a chance that there may be more latency when interacting with the application because data and applications are stored in the cloud at varying distances from the end-user. As a result, the SaaS model is inappropriate for applications with millisecond-level demand response times.

3) Complete reliance on the internet

Most SaaS programmes cannot be used without an internet connection.

4) It’s challenging to change SaaS vendors

When switching SaaS providers, it is necessary to transfer very large data files over the internet, convert them, and then import them into a new SaaS.

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