السبت، 20 ديسمبر 2014

chapter 1


CHAPTER 1  


The Modern Organization Functioning in a Global Environment

* what is IT & IS ?  
- Information Technology (IT) is all forms of technology (tool) used to create, store, exchange and use information.


- Information Systems (IS) is the combination of technology (the “what”), people (the “who”) and process (the “how”) that organization uses to produce and manage information.


* Why Should I Study Information Systems?


  •  the most connected generation in history.


  • practice continuous computing.


  • surrounded by a personal, movable information network


  •  pull information from the Web and push your ideas back to the web . 

* Become  Informed User : 

 nInformed User:  a person knowledgeable about information systems and information technology


ØTend to get more value from whatever technologies / systems they use
ØImprove the organizations’ performance, productivity and team work
ØHelp selecting new information systems / applications
ØBuild your own company (entrepreneur) 


* Digital Nomads:  is someone who uses information technologies such as smart phones,  wireless Internet access, and Web-based applications to work remotely from anywhere. 

* Managing Information Resources: 

  • Traditional Functions of MIS Department 

               Example: manage data center

  • Consultative Functions of MIS Department
                 Example: create business alliances



* Overview of Computer-Based Information Systems : 
  • Data: elementary description of things, events, activities and transactions that are recorded, classified and stored but are not organized to convey any specific meaning.
  • Information: data that is organized and structured within a context, and provides meaning. 
  • Knowledge: information organized and processed to convey understanding, experience, accumulated learning and expertise as they apply to a current problem or activity. 
two types of knowledge : 

1- Explicit knowledge
2- Tacit knowledge


* Computer-based information systems:  are information systems that use computer technology to perform some or all of their intended tasks.


  • Hardware :  is a device such as a processor, monitor, keyboard or printer
  • Software:  is a program or collection of programs that enable hardware to process data.
  • Database : is a collection of related files or tables containing data.
  • Network:  is a connecting system (wireline or wireless) that permits different computers to share resources.
  • Procedures:  are the set of instructions about how to combine the above components in order to process information and generate the desired output.
  • People:  are those individuals who use the hardware and software, interface with it, or uses its output.

* Types of Information Systems: 


1) Functional area information systems (FAIS) : support particular functional areas 

[HR, Marketing, Manufacturing, Finance] in an organization.


2) Enterprise resource planning (ERP) systems : tightly integrate the functional area 

information systems via a common database

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 3) Office automation systems (OAS) : support the clerical staff, lower and middle 

managers, and knowledge workers.  These people use OASs to development 

documents, schedule resources, and communicate.

4) Business intelligence systems (BI) : provide computer-based support for complex, non-routine systems, primarily for middle managers and knowledge workers.


5) Expert Systems : attempt to duplicate the work of human experts by applying reasoning capabilities, knowledge, and expertise within a specific domain.

6) Dashboards : support all managers by providing rapid access to timely information and direct access to structured information in the form of reports.


*How Does IT Impact Organizations?
  • IT reduces the number of middle managers.
  • IT changes the manager’s job.
  • IT eliminate jobs
  • IT impacts employees at work


* Ergonomic: the science of designing machines and
work settings that minimize injury and illness. 


*Importance of Information Systems to  Society : 

1- IT Affects Our Quality of Life
2- Robot Revolution on the Way
3- Improvements in Healthcare

    

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