How to produce 100 Superconducting Modules for the European XFEL in Collaboration and with Industry

European XFEL accelerator module production is in almost full swing by the time of IPAC 2014. This is the first project of this size that includes many partner laboratories and transfer of technology for mass superconducting RF cavity and accelerator module production to industry. This talk will illustrate the organization of the production and the lessons learned, illuminating what one should or would do differently for future projects