Open-source learning platform Moodle is used in Classical Private University (Zaporozhye, Ukraine) for over 11 years. One of the important extensions of the platform functionality, starting with version 2.0, is support for Web services. To explore the practical possibilities of interacting with Moodle Web services we have developed a Java-client and used it for the study. Further work in this area has shown the feasibility of developing a client library, which could be used in the Information...