The Technology and Information Function Flashcards
What purposes do organisations require information?
Recording Transactions Decision Making Planning Performance measurement Control
What is the process of turning data into information
Data Collection Data evaluation Data Analysis Interpretation Reporting
What qualities should information have? ACCURATE
Accurate Complete Cost Effective Understandable Relevant Accessible Timely Easy to Use
What are the different types of Information Systems?
Transaction processing system Office Automation System Management Information System Executive Information System Decision Support System Expert syatem Knowledge Work System
Define: Database
Collection of data organised to service many applications. The Database provide convenient access to data for a wide variety of users
Define: DMS
Database Management System
The software that centralises data and manages access to the database. It enables numerous applications to utilise the same files
What are the characteristics of a database system?
Shared - Different users can access the same info
Control - preserve the integrity of the data base
Flexibility - Provide the needs for different users
What is SQL?
Structured Query Language
Define: Topology
How a computer network is physically arranged
What are the different Topologies
Bus Topology
Star Topology
Tree Topology
Mesh Topology
Define: A Centralised Information System (or function)
involves all functions being based out of a single central location such as a head office
Define: A Decentralised Information System (or function)
involves functions being spread out throughout the organisations locations
What us the difference between E-commerce and e-business
E-commerce is the use of electronics to buy and sell products and services
E-business is the use of electronics to transform key business processes
What is Big Data?
Collection and analysis of large amounts of data to find trends, understand customer needs and help organisations to focus resources more effectively
What are Laney’s three Vs on Big Data?
Volume- Date is collected now from everywhere eg. till receipts
Velocity - Speed to what data is being streamed into the organistation
Variety - Different formats eg email or video
