Information System Essay

3836 words - 16 pages

Introduction to Information Systems
Fundamental of Information Systems, Sixth Edition

Principles and Learning Objectives
 The value of information  how it helps decision makers achieve the organization’s goals  Distinguish data f g from information f  Knowing the potential impact of information systems  Id tif the b i t Identify th basic types of b i f business i f information systems ti t  who uses them, how they are used, and what kinds of benefits they deliver  To build a successful information system y  System users, business managers, and information systems professionals must work together g


Principles and Learning Objectives
 The use of information systems to add value ...view middle of the document...

The component of the Information System
 Businesses:
 Can use information systems to increase revenues and reduce costs

Input, Processing, Output, Feedback
 Input:
 Activity of gathering and capturing raw data

 Processing: ocess g:
 Converting data into useful outputs

 Output:
 Production of useful information, usually in the form of documents and

 Feedback:
 Information from the system that is used to make changes to input or

processing activities


Information Concepts
 Data, Information, and Knowledge  Data: Raw facts (such as an employee number, total hours worked in a

week, inventory part numbers, or sales orders)  Information: Collection of facts organized in such a way that they have value beyond the facts themselves (e.g., report, documents)  P Process: S of l Set f logically related tasks (transform data into useful info.) ll l d k ( f d f l f )  Knowledge: Awareness and understanding of a set of information

The process of transformation Data into Information p

Information Concepts
 Types of Data yp


Information Concepts p Data, Information, and Knowledge
Data and information work the same way way.

Rules and relationships can b set up to organize d be data into useful, valuable information.


Information Concepts
Feed Back of Information
 F Forecasting systems can i

help meteorologists predict the strength and landfall sites of tropical storms.  (Source: Courtesy of AP ( y Photo/Bullit Marquez.)


The Characteristics of Valuable Information
 If an organization’s information is not accurate or complete: g p
 People can make poor decisions, costing thousands, or even

, millions, of dollars
 Depending on the type of data you need:
 Some characteristics become more important than others

 The Valuable Information
 helps decision makers achieve their organization’s goals p g g  Can help people and their organizations perform tasks more efficiently

and effectively y


The Characteristics of Valuable Information


Manual and Computerized Information Systems
 An information system can be:
 Manual or computerized p

 Example: 1. 1

Manual Systems
 Investment analysts manually draw charts and trend lines to

assist them in making i i t th i ki investment d i i t t decisions

Computerized information systems:
 Follow stock indexes and markets and suggest when large blocks

of stocks should be purchased or sold


Computer Based Computer-Based Information Systems (CBIS)
 CBIS is a single set of hardware software databases hardware, software, databases,

telecommunications, people, and procedures that are configured to collect, manipulate, store, collect manipulate store and process data into information  Technology infrastructure:
 Includes all hardware, software, databases, telecommunications, people,

and procedures
 Components of the CBIS  Hardware, Software, Database, People, Procedures, Internet, Intranet, Extranet  Intranet:...

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