- ESI Funds – European Structural and Investment Funds – ERDF and ESF
- ESF – European Social Fund
- ERDF – European Regional Development Fund
- OP – Operational Programme
- OPCC – Operational Programme Competitiveness and Cohesion
- OPEHR – Operational Programme Efficient Human Resources
- MSES – Ministry of Science, Education and Sports
- MRDEUF – Ministry of Regional Development and EU Funds
- LAN – Local-Area Network
- ICT – Information and Communications Technologies
- DEC – Digital Educational Content
- EU – European Union
- Europe 2020 – ten-year growth strategy of the European Union
- e-Learning – computerized learning
- e-Contents – computerized (educational) contents
- e-Services – computerized applications of a service character
- Ultra-fast Internet – Internet with a connection speed of 30 Mb/s and higher
- e-Schools pilot project – abbreviated name of the project with the full name of “Establishing a System for Developing Digitally Mature Schools (pilot project)”, which is carried out in the 2015-2018 period as part of the e-Schools programme.
- major e-Schools project – a project that will be implemented in the 2019-2022 period, based on the results of the pilot project, as part of the e-Schools programme.
- e-Schools Programme – abbreviated name for the programme “e-Schools: a comprehensive informatization of school operation processes and teaching processes aimed at the creation of digitally mature schools for the 21st century”, which will be carried out through several projects aimed at the informatization of the school system in the of 2015-2022 period. The e-Schools programme consists of the pilot project, which will be carried out in the 2015-2018 period, and the major project, which will be implemented in the 2019-2022 period based on the results of the pilot project.