Concept of System and Information

I. Concept of System
1.1 Definition

• System to press in procedure

The groups working network from procedure interconnect for purpose certain

• System to press in component

The assembly part interacting any other

1.1.1 Characteristic of System

• Components

The component interact and intercollaborated form one unit. Components system can often subsystem or parts of system. every subsystem have characteristics from system for the operate function certain and influence process system in as a whole.

• Boundary

The area limit between the system with other system or environtment.

• Environment

All outside from system influence operating system. environtment can be advantageous the energy from system and must maintainable, and than disservice must manage if we do not undisturbable from system.

• Interface

Media relations interconnect between one subsystem with other subsystem. the output from one subsystem to be input for other subsystem with switch.

• Input

Energy income to the system,maintance input is energy income for the system can operate and signal input is energy process for can be output.
example :
in the computer system,programe is maintance input and information is signal input

• Output

The valuefrom energy process and clarification to output purpose and waste product.
example :
for computer system,warm result is output the do not purpose and waste product and information is output the purpose.

• Process

Have part of process vary input to output. the system product will be process input basic material and other basics to be output finished goods

• Objective or Goal

Objective from system critical to success input consuct system and output resultant system. the system as good as sucsess if concern.

1.1.2 Classification
1. Definition I

• abstract

the system such as thinking or ideas do not in sight in a physic. example : thinks relation between human with God.

• Physical
  

The system existing in a physical. example : computer system
2. Definition II

• Natural

The system through natural process. example : system rotation earth.

• human made

The sytem involve interaction between human with machine. example : information system.
3. Definisi III

• deterministic

The system operate with deportment can be predicated. example : computer system.

• probabylistic

The system conditiondo not can be predicated because contains elements probabylistic.
4. Definition IV

• closed

The system do not relation and do not influenced with environment. system worked automatic without interference from outside parties.

• open

the system the relation and influence with environment.system approve input and produce output for other environment.

II. Concept of Information
1.2 Definition
processable data to be form more useful and more be significant for approve.
source from information is data. Data it is a plural from singular data item. Data is fact explain unit relity.

1.2.1 Informasi Cycle
Data process to yield the information use an process model which certain.So that earn more meaning and useful in information form,henca require to be processed through an model certain.Data processed by through an model become the information,receiver later than accept the information, making an decision and conduct action, meaning to yield an other action to make a number of the data return.Data will be under arrest as input, re-processed pass an model and so in form an cycle.

1.2.2 Quality Information

• Relevant (relevancy)
  Means that the information must provide benefits to the users. The relevance of the information for each the one with the other is different. For example, information about the whys and damage engine production to the company accountant is less relevant and will be more relevant when to the engineer company.

• Accurate (accuracy)
  Information should be free from mistakes and not biased / misleading, and must be clearly reflect the meaning. Inaccuracies can occur because the source of information.

• Right time (timeliness)

  Information generated / required can not be late (obsolete). Information that is not obsolete have a good value, so that if used as a basis for decision making.

1.2.3 Value Information

Value determined from the information: Benefits (use) and cost (cost). A said valuable information benefits when compared with the more cost effective to get one and most of the information is not can appropriate the benefits estimated with the value of money, but value can ditaksir effectiveness. This measuring can use the analysis of cost Effectiveness / cost benefit.