International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The main goal of the system is for the students enrolled in it to receive additional exercises to help them learn material in various disciplines. In this way, they will have the opportunity for better preparation and will get better results in the discipline s that are taught to them. Through the knowledge sharing system, advanced students who wish to share their knowledge of a subject will be able to register an exercise to lead on days that are convenient for them. This exercise takes place in a system -specified free room at a school/university. Each student has the opportunity to sign up for a given exercise. When recording, the exercise leader can monitor how many student s will attend. The system is managed through administrator accounts. Through them, the events in the system are trac ked, and if necessary, the cold and exercise data can be added, changed and deleted.

The report presents a developed Web-based information system for managing business processes. The system includes system design and development, database design and development, and Web interface design. A special encryption algorithm was used to generate the key. The main purpose is to provide protection, both at the system’s entrance and during data transfer and storage. For the web platform, the main protections are 1) Control of access to the system by filling in a username and password, individual for each external user; 2) Ensuring protection of input data by irreversible hashing of the password with a randomly generated key from the system; 3) Using resource protection i.e. without authorization it is not possible to review and change the information in the database 4) Using of special unique
identifiers to access the database information; 5) Using a token to send requests to the API.

The report presents a developed Desktop Information System for Employee Management. The system includes database development and encryption using a special algorithm to create an encryption key. The main goal of the development is to provide two types of protection: at the entrance to the system and in the transmission and data storage. The system includes four access levels: Employees, Executives or Managers, Directors and Administrators.
The information system includes the following functionalities, depending on the access levels: entering tasks, registering users, entering priorities for tasks, entering the status of tasks, reviewing entered tasks, editing tasks and their status, deleting tasks, reviewing , add, edit and delete all users in the system; and others.