Please provide an example a description of the usual data flow in ETO and project delivery.
Is it going like this?: 

1. step: Modul Product Estimate Management - assembly (preliminary) of the part peak including phantom items.
2. step: CAD & PDM: ENGINEERING BOM including phantom items.
3. step: MANUFACTURING BOM including phantom items whith and production times.
4. step: Project Management: Automatic creation of the project structure (WBS) of the product. And project planning..
5. step: Make manufactoring order: From the structure of the pre-production phase (only for part - with the status approved for production).