Right Shift vs. Left Shift Testing: Your Path to Success

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Right Shift vs. Left Shift testing

Your product, services, and customer trust longevity will be defined when it is updated and performs well per current relevancies. We are living in an era where we can not think of our lives without software.

In 2023, the software development market captured $334.86 billion and is expected to capture approx $1 trillion market by 2030. To maintain its growth prediction accurately, there is a condition that your software must remain up-to-date and able to perform in the current scenario with current systems. To update it, you can opt for two techniques: Right Shift vs. Left Shift.

Therefore, in this write-up, we will discuss which approach, either Shift Left or Shift Right, is suitable for your software to perform well, and customers need not feel lag and delay in their services. Let’s find out which testing will be used: Shift Left or Shift Right. But before that, a bit about Right Shift vs. Left Shift testing.

Glance about Shift Left Testing: Preliminary Phase of Testing

Once testing with the waterfall model commences, days are no longer necessary. Now the software testing starts from day one so that the effectiveness of the software can be rectified and maintained from the initial stage. It provides several benefits of this testing in addition to fixing bugs. Where to implement these technologies.

Implementation of Shift-Left Testing

To implement Shift Left strategies, teams can utilize different tactics. Like:

  • Continuous integration and Automated testing tools, crucial components of the testing lifecycle, enable early problem identification.
  • This testing plays an equally vital role in collaboration and communication among teams to ensure the involvement of all stakeholders throughout the development process.
  • In addition, The Shift Left strategy can also be strengthened by embracing a DevOps culture, which emphasizes collaboration, automation, and continuous improvement.

Benefits of Shift Left Testing

Check out the cutting-edge features of the Shift Left testing.

  • Testers have a better and clearer understanding of the requirements of the project.
  • This testing leads to the development of testable features.
  • Initializing this testing will help detect bugs in the earlier stages of software development.
  • The Shift-Left testing can reduce the fixing costs of the software.
  • This testing saves time and money by detecting software errors early. 
  • Insights from users’ perspectives are the most authentic testing.
  • Reduces the rush to find errors at the last minute.
  • Timely delivery of the projects can be highly possible when going with the left shift testing.
  •  It can reduce gaps and time between software development and testing.

These are a few advantages of left-shifting testing. However, it needs to provide you with a real-time, user-based experience. Honest Feedback, i.e. authentic and real-user feedback, is also essential to maintain software productivity. Therefore, we also need to practice right-shift testing. Let’s check out what it is.

Glimpse About Right-Shift Testing: After Software Deployment Testing

Shift-right testing is done once your software is complete and prepared to compete with real-world settings, circumstances, and gadgets. This testing gives you access to the opinions and experiences of users as they use the software in real time. In addition, right-shift testing has additional benefits. A selection of them is listed below. In addition, look into how it was implemented.

Implementing the Shift-Right Testing Technique

  • Shift Right strategies can be successfully implemented by teams using monitoring and analytics tools to gather and analyze user data.
  • User feedback and beta testing greatly assist in the gathering of insights and validation of the usability and functionality of the product.
  • Teams can iteratively improve the product by incorporating user feedback by implementing agile development practices.

Advantages of Right-Shift Testing

Find the advantages of the right-shift testing techniques below.

  • The main advantage of this testing is that you will use user feedback obtained directly from users. This technique will help you improve your software, and the tester will also write test cases accordingly.
  • It allows automated testing at the user-interface level, which will work on the end-to-end workflow testing.
  • This shift-right testing occurs when your software features are more stable, integrated and complete.
  • With this testing, you can allow actual performance, stability and security aspects of the software. For instance, it will be easy for you to check the security for the login page, etc.
  • Here detecting and testing bugs will be in a controlled loop.
  • This testing helps check testing ideas, and UI changes with A/B testing.

Note: A/B testing is a synonym of split testing. It is used to conduct a randomized experiment using two or more web page variations.

  • Additionally, this right-shift testing lowers the bounce rate and increases website conversions or leads.

Some of the most innovative aspects of the shift-right testing method have already been mentioned. However, this technique is costly and can put a lot of financial burden on your project. In addition, this can create a gap between software developers and testers.

However, the SDLC and STLC lifecycles can be significantly and favorably impacted by both shifts left and shifted-right techniques.

Difference between Right Shift and Left Shift

It is important to understand the differences between both the frameworks.

Firstly, it must be clear that the shift right testing does not supersede the shift left testing. They both assist each other. It is recommended to utilize both frameworks while accessing your website or application to provide an optimistic approach to the consumers.

Shift Left Testing primarily targets performing instant, automatic, continuous tests for highlighting the bugs and feasible dangers at significant steps of software construction. The shift right strategy helps in analyzing consumer attitude, usage, execution, and protection standards for inspecting the functionality of the software in the custody of its real users.

The Shift Right platform provides huge support in identifying and removing bugs as soon as possible, specifically before they metastasize into problems associated with the composition of the software.

However, it is not humanly feasible to highlight all the bugs, as the testers cannot anticipate every practical life situation that must be utilized by the software.

Shift Right Testing allows the group to be spontaneously informed of any errors or enhanced scope they left. As consumer response makes them aware of the deviations in experience, they may figure out the divergence or loopholes in execution. It helps consumers to not constantly deal with a sub-par UX.

Furthermore, shift right testing provides huge support in minimizing the errors between testers and operations groups, whereas shift left is much more productive in promoting a cooperative attitude between developers and testers.

So, performing both shift left and shift right approaches is an ideal pattern to insert development and operations quality practices in the overall software lifecycle- construction, testing, and post-manufacturing performance.

Where do actual portals and devices fall?

It is obvious that the shift right tests cannot be run in your actual device cloud, which is left to the real-end consumer devices. However, in the shift left tests, the test and device coverage may be enlarged by choosing an actual device cloud that provides real consumer situations to test in.

In case, shift tests are enough enlarged, it would reflect minimum bugs in the shift right tests. Consumers may have very few reasons to provide obstructive responses or adverse replies to your brand. Ops folks, testers, and Devs, which help in discharging software do not take much time to think and resolve the post-manufacturing bugs.        


This write-up explains shift-left and shift-right technology’s role in testing. In addition, these techniques can make your work easier and help maintain customer trust. Furthermore, you save money using these techniques and reduce software development and testing time.

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