Quality Assurance: Manual vs. Automated Testing

In this blog, we will delve into two primary QA approaches: manual and automated. Which is right for your project? How can CENTUM Digital be your strategic ally? Let's keep exploring.

In the dynamic realm of software development, quality is a non-negotiable factor. Here at CENTUM Digital, we comprehend the importance of implementing robust Quality Assurance (QA) practices to ensure excellence in every line of code. In this blog, we will delve into two primary QA approaches: manual and automated. Which is right for your project? How can CENTUM Digital be your strategic ally? Let’s keep exploring.

Quality Assurance Manual

In the software development landscape, manual QA stands as a fundamental pillar to ensure the quality and functionality of applications. This approach involves the intervention of manual testers who play a crucial role in ensuring that the application meets desired quality standards. Let’s delve into how it works and what the key elements of manual QA are.

Roles and Responsibilities of Manual Testers

Manual testers, often called QA engineers, play a vital role in the software development process. Their responsibilities include:

  1. Exploratory Testing: Manual testers comprehensively explore the application, much like an end user. This approach is invaluable for discovering unexpected issues and evaluating usability.
  2. Execution of Test Cases: They develop and execute detailed test cases, verifying each function of the application according to specified requirements.
  3. Requirement Validation: They ensure that the application meets the functional and non-functional requirements set during the design and development phases.
  4. Regression Testing: They verify that new updates do not adversely affect existing functionalities.
  5. Documentation: They create detailed documentation of test procedures, issues found, and results obtained.

Advantages of Manual QA

  1. Adaptability: Ideal for projects in constant evolution and with changing requirements.
  2. Comprehensiveness: Allows for in-depth exploration of the application, discovering potential issues not covered in test cases.
  3. Low Initial Costs: In smaller projects, the investment in automation tools may not be necessary.

When to Choose Manual QA?

  • Small or Early-Stage Projects: When the application is in early development and requirements are prone to frequent changes.
  • UX Exploration: To ensure a seamless user experience beyond mere functionality.

What Does a Company Need to Implement Manual QA?

Implementing a robust manual QA process requires several key elements:

  • Qualified Testing Team: Having testers with analytical skills, a deep understanding of the application domain, and the ability to think like end users.
  • Clear Requirement Documentation: A clear and comprehensive set of functional and non-functional requirements serving as a foundation for test case development.
  • Structured Testing Procedures: Establishing structured processes and procedures for the creation, execution, and documentation of tests.
  • Tracking Tools: Using tracking and issue management tools to efficiently document and manage issues identified during testing.
  • Collaboration with Developers: Close collaboration between development and QA teams is essential to fully understand the code and requirements.

Challenges of Manual QA

  1. Time and Resources: Can be time-consuming, especially for large-scale projects.
  2. Replicability: Test repetition can be resource-intensive when done manually.

Quality Assurance Automated

In the realm of software development, automated QA has revolutionized how quality assurance is approached. Unlike manual testing, automated QA involves the use of tools and scripts to execute tests, offering efficiency and speed in assessing the application. Let’s explore how it works and highlight the key elements of automated QA.

Roles and Responsibilities in Automated QA

Automated QA introduces roles distinct from manual QA:

  1. Automation Engineers: They are responsible for developing automated test scripts. Their focus is on creating a test suite that can be run repeatedly with each change in the code.
  2. Developers: Collaboration with developers is even closer, as automated QA often involves continuous integration and continuous delivery (CI/CD), where tests are automatically run with each new release.

What Does a Company Need to Implement Automated QA?

Effective implementation of automated QA requires:

  • Robust Set of Test Cases: Developing robust test cases that can be run repeatedly without human intervention.
  • Automation Tools: Selecting and using automation tools that align with project requirements and the technology used.
  • Close Collaboration with Development: Integrating automated tests into the development process, often involving creating tests alongside the code.
  • Continuous Integration Environment: Establishing a CI/CD environment that allows automatic test execution with each change in the source code.
  • Initial Investment in Tools: Although there may be higher initial costs due to the investment in automation tools, the long-term benefits are significant.

Advantages of Automated QA

  1. Efficiency and Speed: Automated tests can be executed quickly and repeatedly, ideal for large and ever-evolving projects.
  2. Comprehensive Coverage: Allows for more comprehensive coverage of application functionalities, as tests can be run more frequently and in various environments.
  3. Quick Issue Identification: Issues can be identified and addressed swiftly, as tests are an integral part of the development process.

Challenges of Automated QA

  1. Initial Costs: Adopting automation tools and script creation may require a significant initial investment.
  2. Limited Adaptability: May not be as adaptable as manual testing in highly dynamic development environments.

At CENTUM Digital, we understand the importance of choosing the right QA strategy. Our expert team can help you design and implement a QA approach that perfectly aligns with your project’s needs. Let us guide you:

Manual or Automated Quality Assurance?

Manual QA

  • Small or Early-Stage Projects: For small or early-stage projects, where requirements are subject to frequent changes.
  • Exploratory Testing: When human intuition is needed to explore and find unforeseen errors.
  • Complex User Interface: To assess usability and the user experience in a complex interface.

Automated QA

  • Long-Term Projects: In long-term projects, where the initial investment in automation pays off with rapid and repetitive testing.
  • Rapid Development Cycles: In agile or continuous development environments, where efficiency and speed are crucial.
  • Repetitive Testing: For efficient execution of repetitive tests, such as regression testing.

Hybrid is Possible

 In many cases, a combination of both approaches can be the most effective strategy, leveraging the strengths of each.

At CENTUM Digital, we are not just a service provider; we are your QA partner in building robust and high-quality software. Contact us to discuss how we can optimize the quality of your software.

Automated Testing

Working in short cycles requires speeding up Quality Assurance and, manually, it is not always possible.


Artículo propiedad de CENTUM Solutions, S.L

You want to know more? Contact us

We are digital, and that is why we know the value of a conversation between two people. Please, if you have any questions, have any suggestions or just want to talk to us, contact us through any of the channels we offer you. You have our commitment that we will not use your information to send you SPAM, we like it as little as you do.


Do you want to know the latest news? Subscribe

Would you like to be the first to know what is happening in the sector? In our newsletter you will discover everything.