KARMAN

• Seen from procedure

A system is a network from procedures which interaction to finish a certain target

• Defining procedure

A Procedure is correct sequences from steps explaining what have to be done, who do, when do and how do

• Defining system seen from element

System is corps of elements which have interaction to reach a target

Both definition above not interfere, different only way of its approach

Definition system seen from element is better than define system seen from procedure because in reality, a system can consist of some sub system. Sub System or components in a system cannot walk by self, surely have to interact to target reach.

System characteristic

System component is a system which consist of a number of component which interact and work along. Every sub system have the nature from system to run a certain function. A system can have a large ones system referred with system supra.

1.Boundary

System boundary is area limiting between a system with radian or other system outside.

2.External environment system

Any exist in outside system boundary and have an effect on to system represent external environment system. External environment can profit or harm.

3.System Link

Link represent is a link media from one system sub to other system sub. Through this link enable resource emit a stream of between system sub.

4.Input

Input is entered energy into system. Input can in the form of maintenance input and signal input.

Maintenance input is entered energy to the system can operate. While signal input is energy processed to be got by output.

5.Output

Output is result of from processed energy and classified to become output which good for and rest of dismissal. Output can represent input for the other sub system or system supra.

6.Process

A system can have a part of processor to change input become output.

7.System Objective

A sure system have goal or objective. If a system do not have objective hence system operation there will be no utilizing of. So that objective from s system very determining once required by input is output and system to be yielded. A system told to succeed if exactly to the objective or goal.

Picture of characteristic a system

System Classification

System classified from some point, that are :

1. Abstraction system is system which in the form of ideas which do not see physically. While physical system represent existing system physically.

Example from abstraction system : traditional system like subak

Example from physical system : computer system, networking system

2. Natural system is system that happened through natural process, do not made by human being. While system made in human being represent made by system is human being mechanically.

Example from natural system : rain cycle, gravity system

Example from system made in human being : computer system, university system

3. System as certain system and system do not be certain. Certain system operate with behavior which have earned to be estimated. Computer system is example of certain system which is it behavior can be ascertained pursuant to run programs. While system do not be certain represent system which condition of its future can not be estimated by because containing probability element.

Example from certain system : information system, operation system

Example from system do not be certain : cashier system in super market

4. System as closed system and open system. Closed system represent system which do not correlate and do not have an effect on with external environment of him. While open system represent imbued with and corresponding system of external environment of him.

Elementary concept of information

What in fact that information ? so that of vital importance for a system? Information can be defined as processed data become more form good for and more meaning to accepting it.

Information cycle

Data is form which still raw not yet earned to tell a story many so that require to be processed is furthermore data processed to through a model to be yielded by information. Data processed to yield information a certain process model. Processed data through a model become information, receiver later then accept the information, making a decision and conduct action, which mean yield an other action to make a number of data return. The data will be arrested as input, re-processed pass a model forming a cycle.

This picture information cycle

Quality of information

Quality of from a information depended from 3 matter, that is:

1. Accurate

Accurate mean information have to free from mistake and do not bewilder, accurate also mean information must clear its meaning

2. Timely

Its meaning of incoming information at receiver may not lose time. Because information is the basis for in decision making.

3. Relevant

Relevant mean that information have benefit for its usage

Information Value

Value of information determined from 2 matter that is expenses and benefit get it. An information told valuable if its benefit more effective compared to expense get it. However require to be paid attention that used information in a information system is generally used for a few usefulness.