Understandable on an intuitive level, so they can be used when discussing tasks with a client
EASY TO USE
Simple query language and visual result, so it can be used by analysts
A LOT OF TOOLS
Flexible data structure, easier to make changes in case of changing requirements
The ability to create close to real-life models, without low-level parts
Neo4j is a Java graph database. Main areas of application: social networks, recommendation systems, fraud detection, mapping systems.