The article is dedicated to application of case-based method in the problem of choosing correct suitable scenarios to resolve emergency situations occurring on main gas pipeline. The result of the work is the algorithm for choosing scenarios with the given level for suitable solutions to resolve emergency situations using base of cases describing emergency situations on main gas pipeline.

The application of the methodology based on Scrum / Agile for the development of software for virtual and augmented reality devices is considered. The basic methodology has been modified taking into account the specifics of the development and application of existing design patterns to virtual reality.

The theme of this work is the development of a system for the transmission of streaming content using p2p-technologies. The advantage of the system being developed is the reduction of the load on the centralized nodes of the system and the maintenance of the maximum distribution of tasks between the nodes in the system.