The paper focuses on electronic textbook development for distance learning. The paper contains approaches that allow creating a system for multimedia e-courses, including integration into information systems. E-courses allow you to train school students, professional students and higher educational institutions, employees of enterprises without conducting face-to-face events.

There are basic e-textbook features and open source distance learning systems such as Moodle, Open edX, Atutor, Ilias, and Diskurs. They extend the basic functionality and integrate into information systems. There are conclusions about the need to develop a new solution.

There are requirements for the electronic textbook and the development approach. The proposed solution is suitable for organizations that need to place distance learning tools inside their own information system or on the website. There are main features of the electronic textbook, the architecture, and the data storage model. As the main feature, it is possible to single out the Russian specific consideration in terms of checking expert opinions for the materials publishing possibility. The author tested the solution and highlighted the recommendations and guidelines for further research.

The paper describes the relevance of using software simulators in the operator training process. There is a problem of developing a multi-user software simulator based on web technologies in the paper. The set of requirements proposed for the developed solution, which are necessary for learning how to perform technological process operations and developing appropriate action sequences both in the instructor presence and without supervision.

The paper analyzes the available solutions and proposes the developed system architecture, presents its ER-diagram with key description points that affect its operation.

There is a simulator used by a teacher and a learner. There are differences between the training modes, including a mode, designed to learn emergency handling. To show the system capabilities, the authors implemented a few exemplary control panels for training in performing process operations.

The proposed solution has been tested as the «Gazprom Classes» project part. The main advantages of the proposed solution are the development simplicity and the capability to design the control panes with a visual interface.