I decided to choose a photo studio as a system , and now I am going to talk about the characteristics of this system:

Input : Customers , cameras , computer , photo printer and papers .

Output: Photos.

Components: Computer, cameras, papers and counter.

Process:

1. Taking many photos by the camera which is connected with the computer .

2. Select some of them using the computer.

3. Print them.

Interrelation : There are relations between :

1.  Cameras and computer.

2.  Computer and printer.

3. Printer and papers.

4. Papers and counter.

Interface: Counter.

Environment: Everything outside the studio.

Purpose: Profit.

Constraints: A limited number of cameras, papers and stuff available .

Boundary: Physical walls of studio.