Hi Gauri,
First of all no wiring is required for the FORM UIBBS...You can pass a structure through event parameter also.
Wiring is useful when data need to be passed from LIST UIBB to FORM UIBB or LIST UIBB to TABBED UIBB and three modes are there Collection ,Lead Selection , Selection.
You can use below link for implementing wire model into your application.
http://scn.sap.com/docs/DOC-2394
http://scn.sap.com/community/web-dynpro-abap/floorplan-manager/blog
Thanks & Regards
Praveen Gupta