Managing Interactive Media Glossary: E

Glossary: E (23 entries found)

e-business or e-commerce: Business involving goods and services carried out electronically, usually via the World Wide Web.
e-learning: Relating to learning systems and content delivered, monitored, recorded and perhaps examined electronically.
e-marketing: Promotion or gathering of marketing data electronically. See also web access logs and web analytics.
echo: In audio, delayed and distinct individual repeats of the original sound, either due to sound bouncing off the walls of the room or deliberately added electronically. Famously used on the vocal of Elvis Presley's 'Heartbreak Hotel'. See also reverberation.
EDGE: Enhanced Data Rate for GSM Evolution, a 2.5G mobile technology.
educational technology: The study of the ways in which the use of media and structured approaches to organizing material can aid teaching and learning.
edutainment: A term derived from the words education and entertainment coined to describe a category of interactive titles. These are designed to be used in the home to inform and motivate through the use of media.
electronic certificate: An encrypted identification that can be exchanged between computers, or between a computer and a web server, to verify the identity as each party to the transaction.
electronic programme guide: A guide to what is available on the channels of a digital television system, shown on the system itself and enabling viewers to actually call up programmes. More usually called EPG. In a multichannel world, if a channel is not listed in the EPG it is virtually invisible to viewers.
electrostatic: Describes a system for microphones and, less commonly, loudspeakers and headphones, whereby electrostatic charge is used to detect or cause the movement of the diaphragm.
emulator: A system that pretends to be something it is not, such as a software system that pretends to be a piece of hardware or another software system.
encryption: Changing a data file so that it is unrecognizable but can be turned back into its original form on receipt, if the receiver has the key to decode it.
enhanced TV: Use of interactive technology, either iTV or a website, to add value to a television programme.
environment map: In computer graphics, a method of reproducing reflections on the surface of an object by determining an image of what the object 'sees' from its position and wrapping the object in this image.
environment variable: Information passed to a web server when a distant browser requests a 'page'. It includes information on the computer making the request and what web page included the link being followed (if any).
EPG: See electronic programme guide.
evaluation: Often confused with the term 'testing' and used interchangeably, but when used in a strict technical sense, there are differences. Evaluation of an application is the broad appraisal of any factors that influence the development, delivery and reaction to it. See also testing.
exabyte: A type of computer streamer tape using 8 mm cassette tape in the same format as Video-8 but now replaced for professional applications by more recent formats. The Exabyte Corporation still exists and still produces data storage solutions. Also used to denote 2 to the power 16 bytes of data.
exclusively assigned rights: Copyright passed on to someone else so that the original copyright owner no longer has rights in the material.
external clients: People who are not part of your organization who commission you to carry out a piece of work. They define the brief and specifications. Budgets are agreed and negotiated between you.
extranet: A private network whereby the main company allows some other companies to share some or all data on their intranet with strict controls on access.
eXtreme: see XP.
ezine: An electronic equivalent of a magazine.