ANALYSIS AND DESIGN INFORMATION SYSTEM(PART I)

ANALYSIS AND DESIGN INFORMATION SYSTEM

(Part I)

DEFINITION SISTEM

There are two approach definition of system:

· Approach of procedure

System is a working network from procedures which is interaction and work along to finish purpose.

Procedure is a correct medley of instruction steps explaining what have to be done, who have to do, when have to be done and how to do that.

· Approach of element

System is corps of elements which is have interaction to reach specific-purpose

So Systemè reach a purpose (goal)

è reach a target (objective)

CHARACTERISTIC SYSTEM

· Components

A system have components which interact, work along to form an unity. Supra system is a large system.

· Boundary

Limiting system with other system / external environment its.

· Environments

Environment is Any beyond the bounds of from system of yg influence system operation

· Interface

Media link between a subsystem with other subsystem.

· Input

Entered energy into system can in the form of treatment input and signal input.

· Output

Result from processed energy and classified become output which good for and rest of dismissal.

· Process

Process is change an input become output.

· Target/goal

Otherwise have the target then system operation there will be no utilizing of. System told succeed if have reach the target/ goal.

The Picture of characteristic system

CLASSIFICATION OF SYSTEM

· Abstraction System

For example: religion system

· Physical System

For example: System of Akutansi, System Production

· Natural System

For example: system rotation ,system earth of grafitasi

· Artificial System

For example: computer system

· Certain System

For example: computer system

· Indefinite System

For example: sale system

· Open System

This system accept input and yield output from external environment to have good operation system.

· Closed System

Do not affect or information of energi with external system environment.

WHAT IS INFORMATION?

Information is processing data become more good for and more meaning to user.

The Picture of information siklus

QUALITY OF INFORMATION

· Accurate information

Free from mistakes and not deflect or mislead

· Punctuallyincoming

Information at receiver must be on time

· Relevantly

Information have benefit for its usage

WHAT IS INFORMATION SYSTEM?

Information System is an system in a organization to meet requirement of processing of daily transaction, supporting operation, having the character of manajerial and activity of strategy from a[n organization and provide certain outside party with needed report report.