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.