Information Systems Functions
IS vs IT
IPO Model
Note Taking
Introduction to Business Analytics & Business Intelligence
Information Systems Functions
Information
Systems
perform
Functions
IS Functions Objectives
• Define System, Information System, Business
Information Systems & Information Technology
• Contrast Information System & Information
Technology
• List, define & recognize examples of the four
functions of an IS
Segment A:
Information Systems
vs
Information Technology
IS vs. IT
• System
• Information System
• Business Information Systems
• Information Technology
Segment B:
IPO Model
IS Functions
Output
Input
Processing
Hokie Plus Example
• Hokie Plus is a feature of Hokie Spa (MyVT)
that allows you to change the password
associated with your VT PID.
• Identify the input, processing, output and
storage functions associated with changing
your VT password.
ATM Example
Think about the input, processing, output and
storage functions involved in a withdrawal at
your bank’s ATM (automated teller machine).
First, you swipe your bank card.
2. Is this (A)input, (B)processing, (C)output or
(D)storage?
ATM Example Continued
A. Then you enter your four digit PIN code.
B. The ATM identifies your current balance.
C. You select the option to withdraw money
from your account.
D. You identify how much money you wish to
withdraw.
3. Which one of the above steps is not input?
ATM Example Continued
If you attempt to withdraw no more than your
balance, the ATM delivers the withdrawal amount
in cash. If you attempt to withdraw more than
your balance, the ATM displays an overdraft
message.
4. When the ATM verifies that you have
sufficient funds to withdraw the desired
amount, this is (A)input, (B)processing,
(C)output, (D)storage?
5. The overdraft message displayed by the ATM
is (A)input, (B)processing, (C)output,
(D)storage?
ATM Example Continued
6. When you select the option to end your
banking transaction, is this (A)input,
(B)processing, (C)output or (D)storage?
7. The receipt printed by the ATM identifying
your balance after the transaction is an
example of (A)input, (B)processing,
(C)output or (D)storage?
ATM Example Continued
8. What data MUST be stored to execute the
bank transaction described here?
Segment C:
Note Taking Suggestions
Notetaking for Definitions
• System – components that interact to achieve a purpose
• Information System … to product information
• Business Information Systems …to help businesses
achieve their goals
• Information Technology – products & standards
Notetaking for Figures
manipulation
data
Output
Input
Processing
Data at rest
Environment
information
Notetaking for Examples
• What inputs? PID, current PW, new PW
Focus on the data being input
• Processing? PID entered = PID stored, PW entered = PW stored, new PW
= new PW again, change old PW to new PW
Skip data retrieval and screen displays
• What outputs? “Success” or Error Message
Think about information you receive as a result of processing
• What is stored? PID, current PW
Not read/write but what is being stored
Segment D:
Course Map
Business
Intelligence
Quality
Information
Functions
5-Component
SDLC
Info Literacy
Ethics
Design
• Spreadsheet*
• Database
Data
Analytics
Big Data*
Methods
•
•
•
•
•
Data Mining*
Text Mining*
OLAP*
Visualization*
Query
Database
Benefits 
Components 
Implement with:
* Excel
 Access