The meeting, funded and organized by European Association of Personality Psychology and European Association of Psychological Assessment, gathers 20 scientists researching human personality and its assessment. The meeting aims to tackle the following questions: - Do we need to move beyond the Big Five-like factors? How do these facilitate or inhibit progress in understanding the core phenomena (e.g., predicting behavior, understanding personality functioning)? What are the alternatives? - How can we empirically and conceptually evaluate the viability of different models of personality structure (e.g., correspondence vs emergence perspectives; latent factor vs network vs functionalist approaches)? - Which new sources of data can add incremental value beyond self-reports? - Many scientific fields have gotten a boost by moving from single-lab projects to “Big Science” collaborations (e.g., GWAS projects, ISS, CERN). Which specific “Big Science” projects / resources could help with fundamental questions about personality structure, functioning and assessment? The meeting will contribute to a [Joint Special Issue of EJP and EJPA][1]. [1]: https://us.hogrefe.com/fileadmin/user_upload/global/journals/Hogrefe_Publishing/European_Journal_of_Psychological_Assessment/jpa_a000493_NEU.pdf