inspection char

Dear all ,

i was going thru the below page from SAP help :

http://help.sap.com/saphelp_erp60/helpdata/en/2d/351e09448c11d189420000e829fbbd/frameset.htm

Here under point no 3 . You can enter the following data :

• Data origin. (You use this field to assign a data source such as, handheld application, quality certificate. The system then copies data from this source; optional)

what does it mean & which data it is referring to ? Pl guide .