SAP SD Meaning of "FORM KOBED_002" and "FORM KOBEV_002

FORM KOBED and FORM KOBEV are just the two FORMs under which the formula is encapsulated for picking the price which I have already explained in

Whenever a coding is done or a formula is written we do it by using FORMS. The purpose of encapsulating the code under a FORM is because we should have an option to call the same Form in the some other requirement. So instead of writing the program all over again we justcall the Form with its name.
KOBED_002 and KOBEV_002 are just the name given under which the Formula is written.
Being a Functional consultant we do not have to worry about the coding part but these FORMand ENDFORM contains the relevant formulaes for the specific business requirement.
In the above case FORM KOBED_002 the formula written under it means that system would first check whether the item category attached for an item in that condition item number in SO is relevant for pricing or not.

Do not bother about FORM KOBEV_002 as it does not holdany meaning particularly for this program.