Written by georg
	 on Januar 5, 2010 
- What is the system concerned with?
 - How does it work?
 - Where is the data worked with, or where is funcionality achieved?
 - Who works with data and achieves functionality?
 - When is it done?
 
- What is the system concerned with?
 - How does it work?
 - Where is the data worked with, or where is funcionality achieved?
 - Who works with data and achieves functionality?
 - When is it done?
 
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