Several European countries are supporting the construction of national FEL facilities which are now combining their forces and coordinating their activities to build and operate a distributed European facility, the IRUVX-FEL. The main objective of the IRUVX-FEL Preparatory Phase is the integration of the national FEL facilities into a distributed European FEL facility. This includes the agreement and implementation of structures and methods that allow an efficient construction and operation of the IRUVX-FEL facility, and the preparation of critical technology ensuring that all member facilities will be exploited with highest efficiency. The main objective of work package 3 of the IRUVX-PP is to identify critical technical issues that are of importance for the IRUVX-FEL Consortium, provide a platform for the transfer of knowledge and organise long-term collaborations between the IRUVX-FEL partners. The aim of this workshop is the identification and formation of expert groups and implementation of concepts and communication tools for effective knowledge exchange.