Pagrindinis šio darbo tikslas buvo suprasti kas yra vaizdo konferencijos, kokios yra naudojamos technologijos interaktyviam bendravimui, išsiaiškinti kokios yra didžiausios kompanijos vaizdo konferencijų sprendimų rinkoje ir kokius produktus jie siūlo, suvokti kokie protokolai ir standartai yra naudojami vaizdo konferencijų transliavimui, pristatyti kaip skirtingos vaizdo konferencijų sistemos iš skirtingų gamintojų gali komunikuoti viena su kita. Šio vaizdo konferencijų naudojimo galimybių tyrimo pabaigoje galima rasti vaizdo konferencijų infrastruktūros rekomendacijas skirtingoms vartotojų grupėms (namų vartotojai, mokyklos, nuotolinio mokymo klasės, nuotolinio mokymo centrai), kurios buvo suskirstytos pagal savo dydį ir poreikius. Taip pat gale yra pateikiamos darbo išvados. / The main goal of this paper was to understand what is video conference, what technologies are used for interactive communications, to find out which companies are the biggest players in videoconferencing solutions market and what products they are offering, to realize what protocols and standards are used in videoconferencing, to introduce how videoconferencing systems from different vendors can communicate with each other. In the in the end of this research of opportunities of using video conferences you can find recommendations for video conference infrastructure for different users groups (home users, schools, distance learning class, distance learning center) which were distributed by their size and needs. Also you can find conclusions in the end of this research.

In this paper we analyze development problems and tendencies of virtual education. Separately it’s emphasized the situation with distance education (DE) in Lithuania. The structure, principles and facilities of LieDM network are briefly described. In the first part of the paper main attention is paid to the technological aspect. Examples of different methodologies are overviewed as well as existing norms and standards. In detail we overview the requirements of recorded video presentations and solutions using different media formats and software products. In the second part the specific situation of DE application in Klaipeda University is analyzed. We make the requirement specification and the description of application area. Finally we make a design of the virtual learning management system using procedures of system engineering.