Friday, February 20, 2009

System Information Analyst and Design

The Basic Concept of System and Information

The basic Concept of System

DEFINITION
The system is a group of procedure which each other is interconnected/ correlate one another for becoming or reaching a targetProcedure is a correct sequences of steps instruction which explain what must be done, who is doing, when done, and how do it.

OTHER MEANING OF SYSTEM
System is a group of elements which have interaction to reach specific purpose.

CHARACTERISTIC

Components
- Component which interacted for cooperation to form unity
- Supra system
Boundary of system
- Restrict system with other system / external environment of the system
External environmets of system
- Whatever beyond the boundary of system which influencing the operation of system
Interface
- The interface between one sub system with the other of sub system

Input
- Energy which entered into system, can in the form of treatment input and signal input.
Output
- The result from energy which have been processed and classified to become output, which have benefit from rest of dismissal.
Process
- To change input become output
Target (objective) / goal
- If the system do not have a target, therefor the operation system do not have benefit. The system have been told to succeed if have reached goal or target.



The Basis Concept of Information

The information likes the blood that flow on the body of an organization. The information’s source data. The data is describe the events and factual united.

information of cycle

The Quality of Information
Accurancy : The information must be free from the mistakes and doesn't drifftc of.
Timeliness : The information that come to receiver mayn’t late.
Relevant : That information has usual to user.

Value of Information
considered of 2 (two) factor, that is:
advantage and cost to get that information. Some information called to be have quality if the advantage of information more effective than the cost to get that information.
Usually the cost of value of information can connected by cost effectiveness analyst and cost benefit analyst.

No comments:

Post a Comment