For simple data, workflow parameters will probably be adequate—you may not need to provide a schema. For complex data in a Receive or Reply function, you might require an XML schema. See Using Web Services in FileNet workflows for examples.
NOTES
fnsw_loc/sd/xsd
directory (or a subdirectory) on the Process Engine (PE) server, and must be in xsd format.
The maximum length of the schema file is 2000 characters. NOTE You can use schema files with import, include (multiple schema file imports), and redefine. Reference to the external files must use a relative path to the file, such as ../../CCSchemas\MySchema1.xsd.
TIP To modify the schema retrieved from a file on the server, select the text and copy it to the clipboard, then click Specify Value and paste the text into the text box. Note that this does not change the originally referenced schema file located on the PE server.