ROOSURCE Doubt

Hi ,

When i see the following ,

Table : ROOSOURCE

Field : Delta Process

Some search help Values are :

A , ABR , ABR1 , ADD (LIS) , AIM ( FI ) , FIL0 , FIL1

What does this mean ?

There some terns named used in that search help like

<b>After image</b> , <b>Before Image</b>

What does that mean ?

Kumar