Information Systems
Information Processes
Databases
Social and Ethical Issues
System and Data Modelling Tools
100
Information System
What is a set of information processes requiring participants, data/information and information technology
100
NFORMATION SYSTEMS
Actions that direct and coordinate the system’s resources to affect the data within the system is some way
100
Database
A collection of facts about one specific entry in a database
100
Social and Ethical Issues
What arise from the processing of data into information?
100
ISC Diagram
where are the relationships between the elements of an information system shown?
200
System Analysis
A person who analyses systems, determines requirements and designs and design new information systems
200
Transmitting and Receiving
Communication is more than transmitting and receiving data.
200
Query
A request for information from a database
200
Hackers
Who are often involved in information theft or financial theft?
200
Curved Lines
What represent data flows between processes, data stores and external entities?
300
Feasible
A person who analyses systems, determines requirements and designs and design new information systems
300
Context diagram
Shows the data and information flows between the system and its environment
300
Database management systems
Specially designed software applications that interact with the user, other applications, and the database itself to capture and analyse data.
300
Netiquette
What refers to the way people communicate with each other on the Internet
300
Decision Tree
What is a diagrammatic way of representing all possible combinations of decisions and their resulting actions?
400
Gantt chart
Horizontal bar graphs used to graphically schedule and track individual tasks
400
Real numbers OR floating point
Numbers that are represented using a technique similar to scientific notation
400
Fields
For example, a telephone book is analogous to a file. It contains a list of records, each of which consists of three fields: name, address, and telephone number.
400
Machine-centred systems
What are designed to simplify what the computer must do at the expense of participants?
400
Data Dictionary
What is a table providing a comprehensive description of each field in the database?
500
Direct conversion
Involves the old system being completely dropped and the new system being completely implemented at a single point in time
500
Text
EBCDIC is a system used to code
500
Composite key
Is made by joining two or more fields together
500
Salami shaving
What is a computer crime usually committed by a bank officer.
500
Normalisation
What is the process used in the design of relational databases where we attempt to minimise data duplication by breaking the database up into a number of smaller linked tables?