UJ_VALIDATION Badi - DOC

Hi Experts,

Here we are using the UJ_VALIDATION for Validation Purpose, I know how to create and Validate using Rules.

But here scenario is if i create the rule i need to define the around 800 Rules,

So am planning to Implement this using BADI.

Is any body is having a Documentation of using the UJ_VALIDATION Using BADI.

1.How to write the BADI,

2. Steps to Creating a logic using BADI.

3.How to Use that BADI in Validation Logic.

Correct answer will be awarded Points.

Thanks In Advance