1. INFORMATION SYSTEMS A system is a set of interrelated components,
with a clearly defined boundary,
working together to achieve a common set of objectives.
Virtually everything you can think of is a system,
made up of other systems,
and part of a larger system. V

2. INFORMATION SYSTEMS
An Information System can be any organized combination of:
people
hardware
software
networks
data resource
policies
procedures
That will:
store
retrieve
transform
and disseminate information in an organization V

3. INFORMATION SYSTEMS Three fundamental roles of I.S.
Support of processes and operations
Support of decision making by employees and managers
Support of its strategies for competitive advantage (Wal-Mart) V

4. INFORMATION SYSTEMS I.S. (Information Systems) Activities (5)
Input of data resources
Processing of Data into Information
What are the differences between data and information?
Data: Collection of raw facts and observations
Info: Data that has been processed into some meaningful context.
Output of Information Products
Storage of Data Resources
Control of System Performance V

5. INFORMATION SYSTEMS
Transaction Processing – updating data from business operations
Transaction Processing will:
Collect
Store
Modify
Retrieve transactions of an organization
Transactions are events that generate or modify data that is eventually stored in an information system V

6. INFORMATION SYSTEMS MIS – Management Information System
Structured decision making is
Repetitive and routine, involving a definite procedure for handling information
They can be Daily or Weekly reports
Geared toward Operational Management (overseeing, designing, controlling the process of production and redesigning business operations in the production of goods and/or services)
MIS is a fixed format report
Based on data extracted and summarized from the firm’s Transaction Processing System V

7. INFORMATION SYSTEMS DSS – Decision Support System (the SIS system)
Semi-Structured decision making
Geared toward Middle Management
Only part of the problem has a clear-cut answer
An applications used by middle management to compile information from a wide range of sources to support problem solving and decision making
Ad hoc or in other words interactive reports V

8. INFORMATION SYSTEMS EIS – Executive Information System
Unstructured decision making
Geared toward senior management
Reports trends, compress & track critical data.
Easy to use; enables executives to retrieve information tailored to their needs and preferences
Allows for decisions for entering or exiting a market
Approval of budgets
Deciding long term goals
Summarized reporting from all levels V

9. INFORMATION SYSTEMS
The Decision Structure: (Structured Semi Structured Unstructured)
Unstructured
MIS
Repetitive
Routine
Daily
Weekly
Fixed Format
DSS
Middle Management
Partial Answers
Problem Solving
Ad Hoc
EIS
Senior Management
Trends
Easy Use
Decisions
Budgets
Goals
Summarized
Semi-Structured
Structured V
Information Characteristics

10. INFORMATION SYSTEMS Characteristics of Information Products:
Low Level Reports
Higher Level Reports
Pre-specified
Scheduled
Detailed
Frequent
Historical
Internal
Narrow Focus
Ad Hoc
Unscheduled
Summarized
Infrequent
Forward Looking
External
Wide Scope V

11. INFORMATION SYSTEMS Attributes of Information Quality:
Information should be provided when needed
Information should be up to date when provided
Information should be free from errors
All information needed should be provided
Only the information needed should be provided
Information can reveal performance by measuring activities accomplished, progress made, or resources accumulated.
Information should be provided in a form that is easy to understand
Detail or summary form, should be arranged in a predetermined sequence presented in narrative-numeric, graphic or other form
Should be available on the web, print, video, or other media V