"For our customers, we provide complete services in the implementation of applications in their IT environments, and stress tests are one of the important elements. Silk Performer is the leading technology for stress testing, and thanks to a favorable licensing policy was our preferred."
Monitoring and Testing Manager
Telefónica O2 Business Solutions
Telefónica O2 Business Solutions operates with the aim of interconnecting experience, innovation, professionalism, and complex services in Information and Communication Technology into one comprehensive solution. Telefónica Business Solutions is more than just a telecommunications company or an IT company. It supplies personalized ICT solutions and often takes on full responsibility for ICT operations and development of its customers.
Telefónica O2 deals with major customers around the world and manages the IT infrastructure for many of them. In order to deliver a quality product, load and stress testing is an essential part of the process. Jiří Červený, Monitoring and Testing Manager, says, “We are frequently asked to check an application because ‘it is running slow,’ and the root cause is often the number of users. If we can ensure that applications, both our own and our customers’, are load tested before going into a live environment, we will know exactly what an application is capable of coping with. The open source tools we used could only get us part of the way there, and when users started to exceed 500…the tools could not give us the diagnostics we needed to make informed decisions and recommendations to our customers.”
In addition, the need to highlight problems when the proposed solution comprises components provided by subcontractors made a commercial solution a must. This would give Telefónica O2 the consolidated data and transparent view it needed in order to identify bugs and issues.
One of the key requirements Telefónica O2 identified when it started looking into this is that the solution would be used both internally, for its own applications, and to load, and stress test customers’ applications. This posed a licensing challenge with a number of the solutions considered, including HP LoadRunner. Červený says, “To be able to test third-party applications is very important for us so that we can offer to run load, and stress tests on our customers’ applications. Fortunately, Micro Focus® Silk Performer™ licensing model allows us to do this, which swayed us heavily in its favor."
A proof of concept highlighted another major benefit. Silk Performer offers both standard testing and browser-driven testing. Both features were put through their paces during the trial. With the standard testing, the test engineer sends requests and receives responses back from the system. With the browser-driven testing, the engineer simply clicks on a relevant icon on the website and the test is run. This way, the AJAX logic built into Web browsers can be leveraged to precisely simulate complex AJAX behavior during testing. The results reflect a real-world end user browser experience, including rendering time and protocol-level statistics. Červený comments on this particular feature, “I believe the browser-driven testing capability is a real key differentiator for Silk Performer. It is certainly helping us in our day-to-day dealings with our customers and their solutions.”
The load, and stress testing done at Telefónica O2 has had a positive impact on the quality of the solutions it delivers to its customers. The tests isolate issues and bugs so that they can be fixed without impacting reliability, performance, and scalability. Although Červený is somewhat removed from the end users, he can talk about how his Spanish colleagues have responded when he showed them Silk Performer’s capabilities: “They were really impressed when I showed them the live testing and appreciated the clear and transparent picture it gave us.”
On the customer side, load, and stress testing is valued too. Červený shares a scenario where the solution proved extremely helpful: “When testing a complex solution built on the Remedy platform, Silk Performer has helped us to detect errors on the subcontractors’ side and to avoid potential problems in putting the system into live operation, enabling us to significantly reduce costs and deliver a better-quality product to our customer.”
Having worked with Silk Performer, the benefits of load, and stress testing are certainly clear to Telefónica O2 and Červený would like to see it become a part of the default process for each solution it delivers.
“For our customers, we provide complete services in the implementation of applications in their IT environments, and stress tests are one of the important elements. Silk Performer is the leading technology for stress testing, and thanks to a favorable licensing policy was our preferred choice.”