Jira is a commercial error tracking system designed to organize interaction with users, although in some cases it is used to manage projects. Developed by Atlassian, it is one of its two main products (along with Confluence wiki). It has a web interface. The system is based on Java EE and works on several popular database management systems and operating systems. The main element of accounting in the system is the task (English ticket or issue). The task contains the project name, topic, type, priority, components and content. A task can be expanded with additional fields (new user fields can also be defined), applications (for example, photos, screenshots) or comments. The task can be edited or simply change the status, for example, from “open” to “closed”. What transitions between states are possible is determined through a custom workflow. Any changes to the task are logged. Jira has a large number of configuration options: for each application, a separate type of task can be defined with its own workflow, a set of statuses, one or several types of views (English screens). In addition, using the so-called “schemes”, you can define for each individual Jira project your own access rights, the behavior and visibility of fields, and much more. Thanks to the universal approach, Jira can be adapted for many non-core tasks, for example, requirements management, risk management, up to the implementation of a small reservation system, and automation of the recruiting process.