EDUCATIONAL TECHNOLOGY

Educational technology as the theory and practice of educational approaches to learning.
Educational technology as technological tools and media, for instance, massive online courses, that assist in the communication of knowledge, and its development and exchange. This is usually what people are referring to when they use the term "EdTech".
Educational technology for learning management systems (LMS), such as tools for student and curriculum management, and education management information systems (EMIS).
Educational technology as back-office management, such as training management systems for logistics and budget management, and Learning Record Store (LRS) for learning data storage and analysis.
Educational technology itself as an educational subject; such courses may be called "Computer Studies" or "Information and communications technology (ICT)".

APPLIED LINGUISTICS

Applied linguistics is an interdisciplinary field. Major branches of applied linguistics include bilingualism and multilingualism, conversation analysis, contrastive linguistics, sign linguistics, language assessment, literacies, discourse analysis, language pedagogy, second language acquisition, language planning and policy, interlinguistics, stylistics, pragmatics, forensic linguistics, and translation.

TECHNICAL COMMUNICATION

Technical communication is a means to convey scientific, engineering, or other technical information. Individuals in a variety of contexts and with varied professional credentials engage in technical communication. Some individuals are designated as technical communicators or technical writers.