IPT Glossary E-F Flashcards
EFM
Eight to Fourteen Modulation. A system that converts each byte into 14 fourteen bits such that all bit patterns include at least two but less than 10 consecutive zeros.
Electronic Mail
Embedding
Importing a source file into a destination file. The source file becomes part of the destination file.
Encryption
The process of making data unreadable by those who do not possess the decryption code.
Environment
The circumstances and conditions that surrounds an information system. Everything that influences or is influenced by the system.
ERD
Entity Relationship Diagram
Ergonomics
The study of the relationship between human workers and their work environment.
Ethical
Dealing with morals or the principles of morality. The rules and standards for right conduct or practise.
Evaluation
The process of examining a system to determine the extent to which it is meeting its requirements.
External Entity
A source or sink for data entering or leaving the system. External entities are not part of the system.
Fault Tolerance
The ability of a system to continue operating despite the failure of one or more of its components.
Feasibility Study
A study that analyses possible solutions and recommends suitable solutions. Used to determine if the development should commence (or not)
Feasible
Capable of being achieved using the available resources and meeting the identified requirements.
Fibre Optic Link
A transmission medium that uses light to represent digital data.
File
A block of data comprised of a related set of data items that may be written to a storage device. May be made up of records, files, words, bytes, characters or bits.
