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Cloud Computing Models: Saas, PaaS, and IaaS Explained

March 2 2021, 06:35am

Posted by Claire Mackerras

Due to the rise of modern and more innovative technological trends, cloud computing becomes an excellent substitute for the centralization of computer services under one server.

If you’re the person who is planning to move your business to the cloud or ready to acquire the benefits that cloud computing offers, you need to understand the three service models of cloud computing like Saas, Paas, and Iaas solutions, their comparisons, testing process, and much more information in detail.


Saas refers to Software as a Service that is a software licensing and delivery model in which software licensing is provided based on subscription, and it is hosted from the center.

Saas (Software as a Service) is also popular as cloud application services, “software plus services” by Microsoft, and an “On-demand software” that is used by businesses in the cloud market.

PaaS (Platform as a Service)

Paas in cloud computing is a Platform as a Service that is a complete development and deployment environment with resources in the cloud, which allows you to deliver everything from simple to sophisticated cloud-based apps.

Like Saas, you need to purchase the PaaS from the cloud service provider and pay-as-you-go basis, and finally, you can access the resources over a secure internet connection. PaaS involves infrastructure that are servers, storage, and networking, including development tools, middleware, database management systems, business intelligence (BI) services, and more.


IaaS is defined as Infrastructure as a Service, an instant computing infrastructure supplied and managed over the internet. It offers a standardized way of obtaining on-demand computing capabilities over the web. Its resources involve networks, storage, processing power, and virtual private servers.

IaaS in cloud computing is one of the types, including platform as a service (PaaS), software as a service (SaaS), and serverless. Unlike PaaS, you will pay for what you use. There is no worry of buying and managing own physical servers and other data centre infrastructures.

Read More: SaaS, PaaS and IaaS Advantages

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Cloud Testing: Challenges and Considerations for Testers

September 9 2019, 04:43am

Posted by Claire Mackerras

In today’s time, web services are moving to cloud architecture. There is no doubt that cloud architectures are highly reliable, but there are some challenges that you need to overcome.

Cloud testing services are beneficial as they save tons of money as someone else is hosting the hardware and delivering the software.

So, if cloud testing is so in demand that why everybody is not on board? The answer is that cloud-based testing comes with some challenges. Below we are listing the challenges and providing solutions to overcome these challenges

Security Capabilities

Every business is concerned about data protection on the cloud. When an organization uses a cloud-hosted app for handling sensitive data, it is crucial to handle it with care. It is seen that in several cases, encryption techniques are insufficient for cloud testing efforts. Another challenge that is widely seen is that vendors are not familiar with industry standards. A simple solution to the problem is choosing a cloud testing service provider who is well-versed with industry standards and who can securely test the applications.

Service Availability, Efficiency, and Assurance 

The level of service that cloud providers are able to support is sometimes not sufficient. When a firm is transferring a major part of its operations to the cloud, the firm should be able to access the data without any delays. This challenge leads to assurance and efficiency concerns. Cloud testing service provider must ensure timely delivery and must have the infrastructure in place to provide scalable services.

These challenges can be easily overcome when one chooses a reliable testing service provider with strong SLA. Vendors and organizations can work effectively and efficiently when these challenges are taken care of and overcoming these challenges guarantees minimizing testing efforts and helps in providing scalable solutions.

[Related Read:  Top Cloud Testing Tools To Fit Your Requirement ]

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Check Out The Basic Cloud Load Testing Strategy To Enhance Your Business

October 26 2018, 11:46am

Posted by Claire Mackerras

cloud load testing strategies

Cloud offers a virtual pool, which has infinite resources for computing, storage and networking resources where applications can be scaled as per client’s needs. But while using any cloud-based service we need to carefully look upon quality, security, latency, reliability, bandwidth etc.

While performing cloud load testing, we need to keep three major points in mind:
  1. How will the application behave in front of the expected users load?
  2. What is the point of users load that will break your application?
  3. Will the application be able to scale up to the expected future capacity?

Why Load Testing?

Load testing helps pinpoint and diagnose problems that affect an application’s performance, scalability, and reliability. There are many kinds of load testing, each of which addresses a specific problem area.

To read more, visit full blog post: https://goo.gl/28WC5t

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