High quality testing is the key

Information Systems (IT systems) are a keystone of today’s economics and social life. Various IT systems defects lead to a negative severe impact on at least two important business areas: the financial health of a company and the company’s positive image and reputation.

System testing is one of the software development life cycle stages. This stage is responsible for software reliability and the high quality of an end-product.

System testing provides you with useful information about a software developing project stage. Besides, it allows you to reduce the probability of bugs and future maintenance costs. 

System testing does not cover constantly changing requirements due to an increase in tasks volume and complexity of modern IT systems. In turn, all these things lead to potential risks and considerable losses.

Leadex Systems is a company that provides a full range of services in the system testing area at every single stage of the software development process. Our experts can handle different types of testing.

System tests are a checkout of a turnkey IT system. In this case, test conditions are most closely approximate to a real production environment in order to discover functional and non-functional bugs.

Integration tests are a checkout of an entire systems or system components interactions.

Regression tests are a checkout of hidden bugs that often appear when changing or updating a system. These tests are a must-have in Agile projects.

Load tests (or stress tests) allow to define performance (including system response speed) of a whole system or different parts of a system under load. Additionally, it helps you to analyze system scalability, reliability and in the end resources consumption.

API tests. Application Programming Interface is a set of complete classes, procedures, functions, patterns and constants that are ready for use in the external software products.

The modern APIs are increasingly used as web-services that provide us with the required information. Usually procedures of information sharing or exchange are highly structured and narrowly defined. The API itself is a standalone software. While developing new software engineers can make some mistakes. That is why the API tests have such significant importance. The high quality of the APIs is a vital component. You can ensure correct functioning of a whole system complex only through quarantining correct API functioning. The API tests are easy to automate. The most commonly used instruments to automate the API tests are Junit, SoapUI, Postman, Rest Assured, Karate DSL.

Test automation is a current challenger. The IT systems are getting more and more complicated. Therefore, manual testing is getting more and more time and money consuming. Test automation helps you to easily cut these costs and get rid of routine operations (e.g., end user simulation, creating or generating reports, etc.) and reduce amount of potential failures without getting into trouble.

Our experts mainly use Java for the test automation purposes. Customers quite often want their own personnel to be responsible for auto-tests support. Obviously, that is much easier to find a developer who master Java than an exotic software Guru. The most widely used instruments for test automation are Junit, Selenide (Selenium Webdriver framework), Appium, TestComplete, Katalon Studio.


  • API specification review
  • Test specification development
  • Test framework development
  • Test case development
  • Test execution and reporting


  • External testing
  • Internal testing
  • Blind testing
  • Double-blind testing
  • Targeted testing


  • Testing Load
  • Testing Stress
  • Testing Endurance
  • Testing Volume
  • Testing Scalability


  • Defining goals
  • Planning a test approach
  • Selecting automation framework
  • Selecting testing tool
  • Test case design and execution
  • Maintaining script
Get in touch
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    +971 800 0320341