The very first meeting of the EDDA Working Group is organized on June 26 2017. The aim of the Working Group Meeting is to bring together researchers working in the field of Experts Data (Dis)Agreement and to share information, learn about new developments and discuss solutions for typical EDDA problems. We will organize such meetings twice a year for all interested researchers (applied researchers, statisticians & methodologists). Presentations are about ongoing work, planned projects, or very recently accepted publications. The presentations are short (5-minutes only) and without powerpoint (or LaTex) but with a one-page graphically oriented overview of the most important aspects of the presentation. After the presentation we have a group discussion with the aim to learn as much as possible from the experts in the room.