Flashcards in 6. The purpose and management of the technology and information function Deck (38)
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1
Information systems help to
Plan
Control
Aid decision making
2
Data
facts or figures in a raw unprocessed format
3
Information
data that has been processed to have meaning to the end user
4
Information flow
Input raw data
Process - analysis
Output - reporting
5
Process of converting data into information may include
Data collection
Data evaluation
Data analysis
Data interpretation
Data reporting
6
Characteristics of good information
ACCURATE
Accurate
Complete
Cost Effective
Understandable
Relevant
Accessible
Timely
Ease of use
7
Types of information system
Information systems
Information technology
8
Information systems
provision and management of information to support the running of the business
9
Information technology
supporting equipment (hardware) that provides infrastructure to run the information systems
10
Levels of information
Strategic
Tactical
Operational
11
Strategic
long term complex decisions
used by directors and senior managers
12
Tactical
medium term made by middle management
used by managers at all levels i.e. stock analysis, productivity measures
13
Operational
day to day
i.e. ordering stock, payroll details
14
Management information systems (MIS)
converts internal and external data into useful information
15
Executive information systems (EIS)
gives senior execs internal and external info. Presented in a user friendly way that can be drilled down
16
Decision Support Systems (DSS)
aids managers to make decisions, predicts a number of difference scenarios and manager uses final judgement to make decision
17
Transaction Processing Systems (TPS)
processes routine business transactions i.e. sales and purchase info
18
Expert systems
hold specialist knowledge i.e. law, taxation and allow non experts to interrogate them for information advice and recommended decisions
19
Use of information systems in a factory
Computer Aided Design (CAD)
Computer Aided Manufacturing (CAM)
20
Use of information systems in an office
Electronic Data Interchange (EDI)
Email
Internet
Video and teleconferencing
21
Intranet
private network within an organisation
22
Extranet
private secure extension of an intranet
23
Network
LAN (local area network)
WAN (wide area network)
24
Centralised IS
all functions based out of a single, central location like a a head office
25
Decentralised IS
functions spread out throughout the organisation's location
26
Evaluating a new information system
Cost benefit analysis
27
Systems implementation
Installation
Testing
Staff training
File conversion
Changeover
28
System changeover
Direct
Parallel
Pilot
Phased
29
System evaluation
Cost benefit review
Measuring system performance
Post implementation review
30
