Help with SOAP Web service implementation

hi all
I would need to know how I could and if solve this problem. This s my scenario :
I need to write an RPG program that run as SOAP web service (exposed in IBMi
via IWS(Integrated Web Service)) and that receive the following parameters
(see below)

My problem is how have to define the Program interface/*entry plist , to
respect the levels and to produce a compatible WSDL with this structure

Below my Rpg Program ; if generate the WSDL with IWS (with this RPG) I see
also “orderds”, but I think is not coherent with the following table

If you could help me to solve this problem, I would be gratefull
Thanks in advance
I hope to be explained me (is not easy)

Paramters
Entity Name Entity Field Name
ORDER CONFIRM orderConfirmRequest/
idReq orderConfirmRequest/idReq
date orderConfirmRequest/date
ORDER orderConfirmRequest/order
idOrd orderConfirmRequest/order/idOrd
dateOrd orderConfirmRequest/order/dateOrd
ITEMS orderConfirmRequest/order/items/
ITEM orderConfirmRequest/order/items/item/
row orderConfirmRequest/order/items/item/row
code orderConfirmRequest/order/items/item/code

rpg program
D items Ds
D row 10i 0
D code 20

D orderDs...
D Ds
D idOrd 9
D dateOrd Like(xsd_dateTime)

D confirmOrderRequest...
D Pr ExtPgm('XXXX1A')
D idReq 10 Const
D date Const Like(xsd_dateTime)
D order Const LikeDs(orderDs)
D item Const LikeDs(items) dim(100)

D confirmOrderRequest...
D Pi
D idReq 10 Const
D date Const Like(xsd_dateTime)
D order Const LikeDs(orderDs)
D item Const LikeDs(items) dim(100)