what is ment by corelation between input and out data in database
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I got a requirement in which , require configuration for 
<br>1)Connection Type
<br>2)Data Sent/Receive
<br>3)Serverid and port<br>
Above there can be handled but.
Also the doc contains one sentence as " Both input and output data should be co-related in the database and searchable."
I analysed it as think it bit differently say suppose we have `f(x,y)=(x-1)+(y+1)` this equation. Now f(0,0)=0, f(1,1)=2, f(2,2)=4.so on it will generate all even nos.
 now above equation can also be written as f(x+1,y+1)=f(x,y)+2.
 for whatever value we give we have a co-relation b/w input and output.

But how to justify with database?
Please can anyone help on this.