Go back to all articles

System Testing

Mar 20, 2019
3 min read

When working with IT services, employees do not always know exactly which IT system is executing their requests at the moment. For example, an employee in the credit department works with the front office system to start a loan application, but as the customer is served this application is processed by back-end systems that analyze the borrower’s credit history and much more.

That’s why in order to ensure that business processes run reliably you have to be sure that each system involved is operating correctly and that the systems are interacting with each other without errors.

PFLB offers organizations system testing services, which is designed to test individual IT systems. The service includes black-box functional testing as well as options such as regression testingload testinginstallation testingusability testing, and test automation.

PFLB’s methodology makes it possible to perform testing at various stages of the development life cycle. Thus, if an organization decides to conduct independent acceptance testing of a purchased IT system, we can be plugged into testing before it is deployed. If an IT system is being developed in-house, we organize software testing using the agile methodology, which adds testing activities to development sprints.

Our approach relies on the ISTQB’s international methodology, which is used to create optimal test coverage and high-quality test cases, as well as our many years of experience in test automation. Test automation is necessary to conduct testing in early stages of development, since it enables automatic checks as part of regular CI/CD builds.

When you plan testing of a system we recommend that you consider the need for your employees to participate in the project. We will need to consult with specialists in functional areas as well as IT department employees. Effective communication is the key to creating the optimal test coverage, which is based on the criticality and complexity of the IT system’s features. The completeness of test coverage is a factor in determining not only the risk that bugs will surface in real-world use but also the amount of the organization’s costs to fix these bugs.

Related Services

After system testing is conducted, the IT system is ready for integration testing, which makes it possible to find bugs in the interaction between IT systems. Furthermore, you can refer to them for other core software testing services as well and much more.

Table of contents

    Related insights in blog articles

    Explore what we’ve learned from these experiences
    9 min read

    10 Top Data Masking Tools

    top data masking tools preview
    Jun 9, 2025

    Data breaches can cost companies millions. That’s why more businesses are turning to data masking tools to keep sensitive information safe. But with so many options out there, how do you know which one’s right for you? In this article, we’ll walk you through some of the best data masking tools available today. Whether you’re […]

    8 min read

    Contract Testing : A Complete Guide

    contract testing preview
    Jun 5, 2025

    When you’re working with microservices or APIs, one miscommunication between systems can break your entire application. That’s where you need contract testing. This guide will walk you through what contract testing is, how it works, and why it’s become essential for teams building distributed systems. Whether you’re a developer, QA engineer, or architect, you’ll learn […]

    8 min read

    What Is Spike Testing: Complete Guide

    spike testing preview
    May 30, 2025

    Imagine your application is running smoothly until a flash sale or unexpected traffic surge hits. Suddenly, users can’t log in, pages stop loading, and your team is scrambling to restore service. These unpredictable spikes can overwhelm even the most robust systems if you’re not prepared.  Spike testing is the method used to simulate these sudden […]

    14 min read

    Top 10 Online Load Testing Tools for 2025

    best online load testing tools preview
    May 19, 2025

    In this article, we will go through our favourite features of each of these cloud-based load testing tools, while in the end you will find a parameterized comparison of all of them in one table.

  • Be the first one to know

    We’ll send you a monthly e-mail with all the useful insights that we will have found and analyzed