Hi RB,

1. If you have created a project for example "HelloWorld", process "Process.bpm" and executable pool "Implementation" then designer will create the wsdl for this under build folder as "Process-Implementation.wsdl" means combination of bpm process name and executable pool name.
2. If you want to use this wsdl in other project then you need to copy the dependent file (eg. xsd schema) along with this wsl file.
3. Good way is create a separate folder under the project in which you want to and copy these file wsdl and dependent schema file.

Thanks,
Ravinderjit.