Case Study: Dr. Keil Informationstechnik achieves reliable high-coverage testing with QA Systems Cantata

Dr. Keil Informationstechnik reaches 97% decision coverage with QA Systems

Dr. Keil Informationstechnik GmbH & Co. KG, a leading consulting and software firm, faced the challenge of ensuring extreme reliability for a major telecommunications equipment supplier's critical network administration module. The project demanded a maximum downtime of only 0.5 hours per year, requiring a rigorous testing program for a complex C++ system that included algorithmic functions, database interfaces, and GUI classes. To meet this challenge, Dr. Keil appointed Michael Zeiner, who selected QA Systems' Cantata as the main software test tool for its versatility.

The solution implemented by QA Systems involved using Cantata to achieve high coverage metrics, including 97% decision coverage and 70% Boolean coverage. The tool was used for unit testing and was extended to test functionally coherent clusters of classes, GUI components, and database objects. Cantata also enabled efficient client/server interaction and load testing through simulated scripts. This comprehensive approach allowed Dr. Keil to thoroughly test the system, discover errors early, and meet the client's stringent reliability requirements without needing multiple tools.