IS - (01). Introduction To IS

► Data ? - Set of facts which describe a particular things in the real world.

♥ employer name , address , nic

► Information ? - Kind of data which will useful for decision making in different contexts.

♥ salary of month

►Process ? - Series of activities for convert Data into Information.

♥ calculate presence , calculate deductions

►Characteristics ? - V . . . FAST RACERS

V-erifiable

F-lexible

A-ccurate

S-imple

T-imeliness

R-eliable

A-ccessible

C-omplete

E-conomical

R-elevant

S-ecure

►System ?- means a collection of components which work together to achieve a specific goal.
♥ Human Body , School
Concepts

►System Types ? - S O A P S

S-imple Vs Complex
O-pen Vs Close
A-daptive Vs Non Adaptive
Permenent Vs Temporary
Stable Vs Dinamic

►System Performance Indicators ? - E E

E-fficiency
E-ffectiveness

► System Variables ? - Control by decision makers.

►System Parameters ? - Values that can't control by decision makers.

►Modelling ? - simplify presentation of such complex things in real world.

► Models Classification ? - N S P M

N-arrative
S-chematic
P-hysical
M-athematical
►Information Systems ? - Set of interrelated components that collect (input), manipulate & store (process) , disseminate (output) data and information and provide a feedback.

►Main component of IS - I O P F
I-nput
P-rocess
O-utput
F-eedback

►Computer Based IS (CBIS) - Single set of hardware , software , database , telecommunications , people & procedures that are configured to collect , manipulate , store , and process data into information.

►Activities in IS

Input of data resources
Processing of data into information
  Output of data resources
Storage of data resources
Control of system performances

►Trends in IS
 

►Role of IS 

Support its business process and operations.

Support decision making by its employees and managers.

Support its strategies for competitive advantage.

 ►Management challenges

Success and failure with IT

IS solution development challenges

Challenges of ethics and IT

Human resources challenges

 ►Important of learning IS - All the types of companies are use IS to various useful reasons.

Computer literacy and IS literacy are must.

IS Careers

Primary responsibilities of IS company are operations , system development and support.

Skills required by IS personnel    

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COMPLETED FIRST LESSON

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Comments are welcome

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