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.
File Server
A Computer (including software and hardware) dedicated to the function of storing and retrieving files on a network.
First Normal Form
The organisation of the database after the first stage of the normalisation process is complete. Also known as INF.
Flash Memory
Electronic solid-state non-volatile memory
Flat-File Database
A single table of data stored as a single file. All rows (records) are composed of the same fields (attributes).
Floating-Point
A binary system for representing real numbers. Floating point does not represent all numbers exactly.
Flow Control
A system that controls when data can be transmitted and when it can be retrieved.
Font
A specific example of a particular typeface. For example Time New Roman Italic 12 point.
Foreign Keys
Fields that contain data that must match data from the primary key of another table.
Fragmentation Distributed Database
A type of distributed database that utilises both vertical and horizontal fragmentation whereby individual data items are physically stored once only at one single location.
FTP
File Transfer Protocol. A set of rules for transferring files across a network.
Full Deplex
Communication in both directions at the single time.
Funding Management Plan
A project management tool for ensuring a project is developed within the allocated budget.