QA Expertise

Testing Methodologies


There are many testing methodologies used for Software development and testing. Selecting right methodology for testing is skillful exercise which needs hours of professional experience. We at QTS understand this thoroughly and hence created best practices and guidelines to select the right testing Methodology.


Agile Methodology

Agile Methodology uses iteration approach. We implement Agile methodology to be able to respond and adapt smoothly to all changes that emerge during the software development and testing process. When using agile methodology, your software development process will be divided into numerous short cycles or iterations that help to minimize the risks. As a result, your software development process will consist of several releases, each of which will be built on a previous version. Testing process is carried out for each release.

Scrum is the most popular and common Agile approach used specifically to manage software development process. Scrum is an iterative Agile process which fosters flexibility and encourages team members to self-organize by everyday communication and cooperation.

Waterfall Methodology

Waterfall Methodology is a traditional approach for development which involves following phases.

  • Requirement Analysis
  • Architecture and Design
  • Development and Testing
  • Implementation

Blended Testing Strategies

Deciding right testing strategy is very important. We encourage customers to have blended strategy between Agile and waterfall so that we can bring the best of both worlds. For instance, during enhancements of existing systems and situations where requirements are still evolving, we recommend agile testing methodologies. However for large projects or new development where the requirements are clear we recommend waterfall based approach.


In the agile approach as the whole development is divided into sprints with limited functionality in each sprint, our testing approach will be based on sprints. We involve with the development teams during requirements discussion, daily scrum call and tag the whole testing approach to the development cycle. Normally in these cases, we will be lagging by a week to development cycle.

  • During agile development cycle, we recommend below testing strategy.
  • Understands the sprints
  • Define testing requirement for each sprint
  • Execute Testing
  • Publish results

In waterfall approach, our teams spend time understanding the whole business requirements in firs few weeks. We firmly believe, though testing is seen as horizontal, tester needs to have thorough understanding of Business Requirements (close to Business Analyst). Testers not only find the gaps in the system but also identifies functional gaps and recommend solutions.

  • Analyze the requirements
  • Define the types of testing needed based on the project duration. For instance, Regression Testing, Functional Testing, Toll Gate Testing, Performance Testingetc
  • Create Test Plans and Test cases
  • Execute Testing
  • Publish Results

We believe agility in the approach is more important than mere agile methodology. In spite of the popularity gained by agile methodologies, there are many situations waterfall approach offers significant advantages. For instance, in the waterfall approach, QA team gains early insight and command on the domain knowledge which helps in identifying better functional test cases. So we recommend a blended approach in order to achieve best results.

QA Competency

In the agile approach as the whole development is divided into sprints with limited functionality in each sprint, our testing approach will be based on sprints. We involve with the development teams during requirements discussion, daily scrum call and tag the whole testing approach to the development cycle. Normally in these cases, we will be lagging by a week to development cycle.

  • During agile development cycle, we recommend below testing strategy.
  • Understands the sprints
  • Define testing requirement for each sprint
  • Execute Testing
  • Publish results

Software applications are backbone of any business. Failure of software could lead to Revenue loss, Reputation loss, dissatisfied Customer, opportunity loss etc. Hence it is imperative that software perform intended functionality at all times. Functional testing plays a vital role in ensuring the software is delivering exactly in sync with services promised to end customers. At QTS, we give utmost importance to end customers of all clients and design all the functional test cases accordingly.
Functional Testing typically includes:

  • End to end business scenarios of customer system
  • Interaction between various functional modules
  • Accuracy of the tasks performed by the software
  • Variations in the input data
  • Negative scenarios which needs to be avoided by the system
  • Coverage of all requirements designed into the system

Functional testing is the most complex part of testing life cycle as it involves simulating user behavior, covering all the possible business scenarios, preventing all the negative scenarios and variations in the customer data. This not only needs anticipating end customer behavior but also a good understanding of customer business domain. QTS has good pool of experienced resources who will grasp the customer business domain and create test suites which ensures high quality software.

Customers invest into business for growth. With growth come increased user base and transaction volumes. Designing software that is scalable very important in order to accommodate the customer business growth. A thorough performance testing ensures the system is scalable and ready to take customer business to new heights.
Our performance testing expertise includes:

  • Identification of performance bottle necks and possible solutions
  • Generating data that tests the scalability of application
  • Development of simulation systems that can mimic high volume transactions
  • Isolating components which needs redesign
  • Analytics and charting on performance of the system

Test Cases Coverage

Designing the testing strategy is a skill full exercise. There could be potential gaps left in testing if the test strategy is not adopted correctly. Test coverage is a good indicator in order to ensure that all the parts of the system is thoroughly testing and no known defects lurch into production. Test coverage acts as a barometer of testing and can provide early indications on the quality of software being delivered.


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Our expertise includes:

  • Unit Test Coverage report
  • Functional Test coverage report
  • Requirements coverage report
  • Code coverage report
  • Inter modular interaction coverage report

Automated Testing

Testing automation is a hot subject with constant innovation at various levels. Automation of testing services offers enormous benefits on long term as mentioned below.


  • Reduce the cost of quality over a period of time
  • Increase the effectiveness of testing
  • Build regression suite over a period of time which ensures system is functioning as desired
  • Eliminate manual errors and over looking errors in results verification
  • Increase the variations of testing as this will help accommodate more scenarios in limited time
  • Helps tester to focus on more on understanding functionality and creating test cases rather than manually executing testing.

Manual Testing

Automation might not be either possible in all cases or might not be cost effective. In such situations manual testing is preferred. For instance, while testing a project where GUI layouts are not finalized but still evolving but need to be tested in order to test back end integration. Manual testing need skilled resources who can work independently, understand the functionality, execute the test cases, raise defects, capture the evidence of success/failure etc. The resources not only need to be attentive, but also need to be good in communication. QTS clearly understands the desired skill set and groom suitable resources to perform the manual testing.

Training and Grooming

Training and grooming of staff is integral part of any organization and QTS truly recognizes this need. In QTS, employees are constantly encouraged to improve the competency both in technology and domain. QTS employees following techniques to keep our staff on the path of continuous learning

  • Employees are constantly challenged to articulate the big picture of the project and importance of their work. This increases the accountability of employees and keeps them relevant in the project
  • All Employees are made part of ideation and brainstorming sessions. This helps them develop structured thinking, grasp the big picture of the project and also related to solutions developed for customer systems
  • Employees are encouraged to use MOOCs and other tutorials to constantly upgrade their technical skills
  • All Employees are provided with opportunities which takes them out of comfort zone and forces them to acquire knowledge to solve the customer problems
  • All Employees are provided opportunity to be part of Research and Development team at regular intervals so that they understand new advancements and keep motivated towards self learning and development.

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