(OER) are freely accessible, openly licensed documents and media that are useful for teaching, learning, and assessing as well as for research purposes. It is the leading trend in distance education/open and distance learning domain as a consequence of the openness movement.

An OpenCourseWare is a free and open digital publication of high quality educational materials, organized as courses. The OpenCourseWare Consortium is a collaboration of more than 200 higher education institutions and associated organizations from around the world creating a broad and deep body of open educational content using a shared model. The mission of the OpenCourseWare Consortium is to advance education and empower people worldwide through opencourseware.
MIT OpenCourseWare
TU Delft OpenCourseWare
University of California, Irvine

(OSS) is computer software with its source code made available with a license in which the copyright holder provides the rights to study, change, and distribute the software to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is the most prominent example of open-source development.
Prime examples of open-source products are the Apache HTTP Server
e-commerce platform osCommerce
Internet browsers Mozilla Firefox and Chromium (the project where the vast majority of development of the freeware Google Chrome is done) and
the full office suite LibreOffice
. One of the most successful open-source products is the GNU/Linux operating system, an open-source Unix-like operating system, and its derivative Android, an operating system for mobile devices. In some fields, open source software is the norm, as in voice over IP applications with Asterisk (PBX)

A learning management system (LMS) is a software application for the administration, documentation, tracking, reporting and delivery of electronic educational technology (also called e-learning) courses or training programs.
Learning management systems range from systems for managing training and educational records to software for distributing online or blended/hybrid college courses over the Internet with features for online collaboration. Colleges, universities, school districts, and schools use LMSs to deliver online courses and augment on-campus courses.
LMSs also act to augment the lessons the teacher is giving in a brick and mortar environment, not just replace them. Corporate training departments use LMSs to deliver online training, as well as to automate record-keeping and employee registration.

Open learning is an innovative movement in education that emerged in the 1970s and evolved into fields of practice and study. The term refers generally to activities that either enhance learning opportunities within formal education systems or broaden learning opportunities beyond formal education systems.
Open learning involves but is not limited to: classroom teaching methods, approaches to interactive learning, formats in work-related education and training, the cultures and ecologies of learning communities, and the development and use of open educational resources.
While there is no agreed-upon, comprehensive definition of open learning, central focus is commonly placed on the "needs of the learner as perceived by the learner." Case studies illustrate open learning as an innovation both within and across academic disciplines, professions, social sectors and national boundaries, and in business and industry, higher education institutions, collaborative initiatives between institutions, and schooling for young learners.
See OLE-Ghana
Open Learning Initiative (Stanford University)
Open Learning Initiative (CMU)

The purpose of a Virtual Library (VL) is to underpin learning and acquisition of knowledge, to provide a more solid basis for education and to enhance quality of life by drawing on digitally available (preferably on-line) books, materials and journals via ICT-based tools.
World Digital Library

The term open university usually refers to a university with an open-door academic policy, i.e. no entry requirements. The term may specifically refer to:
Allama Iqbal Open University in Pakistan
Athabasca University in Canada
Bangladesh Open University in Bangladesh
Global Open University in India
Hellenic Open University in Greece
Indira Gandhi National Open University in India
Karnataka State Open University in India
Venkateshwara Open University in India
Odisha State Open University in India
Intercultural Open University Foundation
Krishna Kanta Handiqui State Open University in Assam, India
National Open University of Nigeria
Open SUNY in New York, USA
Open Universities Australia
Open University of Brasil
Open University of the Netherlands
Open University, in the UK
Open University Malaysia in Malaysia
Open University of Catalonia
Open University of Cyprus
Open University of Hong Kong
Open University of Israel
Open University of Mauritius in Mauritius
Open University of Portugal
Open University of Sri Lanka
Open University of Sudan
Polytechnic University of the Philippines Open University
Ramkhamhaeng University in Thailand
Sukhothai Thammathirat Open University in Thailand
The Open University of Japan
Universitas Terbuka (Open University) of Indonesia
University of the Philippines Open University
Wawasan Open University in Malaysia has more than 100 trusted sources, including encyclopedias, dictionaries, and thesauruses with facts, definitions, biographies, synonyms, pronunciation keys, word origins, and abbreviations.
Visit Online Encyclopedia
Encyclopedia Britannica

One approach to measuring academic quality is to focus on resource measures, i.e., on the ‘inputs’ into the educational process such as faculty qualifications, faculty publications, faculty deployment/teaching loads, student/faculty ratios, financial resources, library resources, facilities and equipment, and other similar inputs.
Quality Assurance