The Multidisciplinary Expert System for the Assessment & Management of Complex Brain Disorders (MES-CoBraD) project aims at improving diagnostic accuracy and therapeutic outcomes in people with Complex Brain Disorders (CoBraD), as reflected in the Neurocognitive (Dementia), Sleep, and Seizure (Epilepsy) disorders and their interdependences through Real-World Data (RWD) from multiple clinical and consumer sources through comprehensive, cost-efficient, and fast protocols.