**5. Successful conditions of online teaching and learning ecology (OTLE) for higher education**

The management of instruction in the new era is under the constraint of area and place. Digital technology is an important factor that brings efficiency in learning management. The preparation and improvement of the technological system may be beyond the responsibility of university lecturers. Thus, university administrators or the department involving with system development and technological infrastructures must revise and plan the digital technology strategies in order to cope with the use by both lecturers and students. These are the successful conditions of virtual university. Followings are the issues to be implemented:

