Go back to all articles

Reliability and Stability Testing

Mar 28, 2019
4 min read

Reliability and stability testing allows to model system behavior during regular and irregular situations, shutdowns or restarts of the various system components or lengthy loads on the system.

Problems it will solve

  • Minimizing the risks related to the inoperability of business processes or system components after the failure of several system components by promptly discovering problems during the reliability and fail-safety tests and providing recommendations for their overpassing
  • Minimizing the risks related to possible system performance degradation under loads after its restoration by comparing the system performance indicators during the reliability and stability tests


  • 01
    The report on the stability testing includes
  • Information about the number of defects discovered in the operation of different business processes and system components after the failure of a certain component, as well as their severity
  • A list of defects with a description of the problem and a method fafter the failure of a certain component
  • Information about the restoration time needed for the system component and business processes, and also about the necessary conditions
  • Information about the changes in the IT system performance after the restoration of the system operability, and about the precise parameters of the IT system response speed: response times of user operations (under different loads) and server-loading resources (CPU, Memory, I/O)
  • Recommendations for the system architecture and infrastructure improvements
  • Description of load profiles (MS Word)
  • 02
    Test data (The format of the test system used)
  • 03
    Load-testing scripts
  • 04
    External system emulators
  • 05
    Load scenarios
  • 06
    Scripts for generation/depersonification of the DB
  • 07
    Data pulls
  • 08
    Manual for conducting the tests

Scope of work

  • 01
    Creation of load testing methodology
  • Collection and analysis of production environment statistics
  • Coordination of the performance requirements
  • Determination of business processes and load scenarios for reliability testing
  • Determination of components for reliability testing
  • Description of the interactions with the external systems
  • Calculation of the intensity and determination of the load profiles for reliability testing
  • Description of the requirements for the DB volumes
  • Creation of a test plan
  • 02
    Creation of a test model
  • Development of load scripts
  • Development of external system emulators
  • Creation of load scenarios
  • Creation of scripts for generation/depersonification of the DB
  • Creation of data pulls
  • Manual for conducting the test
  • 03
    Test preparation
  • Checking the operability of the test environment
  • Installing the testing tool on the load stations
  • Tuning the monitoring tools
  • Conducting trial tests
  • 04
    Conducting stability tests
  • Launch tests for checking the system reliability in accordance with the load scenarios
  • Shutdown/restart of the chosen system components
  • Launch tests to check the fail-safety of the system
  • Results analysis
  • 05
    System analysis
  • Analysis of the bottlenecks in the system performance
  • Analysis of the influence of a shutdown/restart of the chosen components on the business processes
  • Analysis of the system restoration time after a shutdown/restart of the chosen components
  • Preparation of the recommendations for changes in the system architecture and infrastructure or the development of relevant regulations

Service Limitations

Stability testing is not functional and is not intended to discover functional bugs. However, all discovered functional defects will be noted and presented to the customer.

Related Services:

Tools and licences

  • LoadRunner
  • Apache JMeter
  • MS Visual Studio
  • IBM Rational Performance Tester
  • Silk Performer
Table of contents
Let us know about your needs
We can provide multiple performance testing services and a lot more than that if the situation needs a far more complex approach.
Get a quote You’ll hear back from our tech account manager in one day if not sooner

Related insights in blog articles

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

Why Load Testing Is Essential for Ecommerce Businesses

why load testing is essential for ecommerce businesses preview
May 17, 2024

The success of 26 million online retailers depends on the page load time. It significantly impacts the profitability of online services and sales, as customers don’t want to wait over three seconds to make a purchase. To ensure the desired speed, load testing is widely applied. Common Ecommerce Problems That Can Be Solved with Load […]

8 min read

Everything You Should Know about Performance Testing of Microservices

everything you should know about testing microservices preview
May 2, 2024

About 85% of enterprise businesses use microservices. In this article, we will cover the primary specifics of microservices, explain why they need performance testing, and highlight how to make this process efficient. Microservices in a Few Words Microservices (or microservices architecture) refers to a methodology for developing and deploying applications. This approach separates an extensive […]

4 min read

PFLB is Now SOC2 Compliant

pflb is now soc2 compliant preview
Apr 24, 2024

The PFLB team is happy to share the good news. We have passed the SOC 2 compliance accreditation. It means we can assure our clients that our cooperation will be entirely secure. What Is SOC? Introduced by the American Institute of CPAs (AICPA), SOC, or Service Organization Control, is a cybersecurity series of reports made […]

11 min read

How Do Businesses Benefit from Frontend Performance Testing?

how do businesses benefit from frontend performance testing preview
Apr 15, 2024

Crucial bottlenecks are usually backend-related. That’s  why backend performance testing is generally regarded as a must. However, only 1% of companies perform frontend performance testing. They don’t consider that to achieve the best business results, one should combine the two types.  Let’s prove it. We will define their differences, emphasize the importance of conducting backend […]

  • 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