creating and updating multilevel categorization schema for service request programatically??

Hi All,

I have found some posts which showing some configuration steps, creating the multilevel categorization schemas from UI and adding the categories.

In my case I have categorization data of 3 levels and I need to create the multilevel categorization schema programatically for the Service Requests transaction type. Below is an example of categorization data.

level 1 ( 5 values )

Level2 ( for each record of level1  2 values  so total 10 values )

Level3 ( for each record of level2  2 values  so total  20 values)

I need to create a new schema with the above data using code.

Please help me if some one did this earlier or if you have some inputs.  I need some function modules or code to do this.

Inputs are highly appreciated.

Thanks & Regards,

      Bala.