• ESTRA (Electronic System for TRAining) – Kozloduy NPP e-learning platform.
  

 

• E-learning (short for electronic learning) – training organized as online courses in the necessary sequence and in accordance with the accepted standards. For a limited period of time large scale of information can be provided and big groups of users can be trained. 
  

 

• Electronic course – programming-methodical complex allowing individual learning of training content and covering particular field of knowledge.