Technologies in the Graph Space
Graph Database System (OLTP)
Technologies that provide online transactional processing (OLTP) capabilities for graph fall under this category. It is a system with Create, Read, Update and Delete (CRUD) methods that can be applied real-time on a graph data model. In contrast to index-intensive, set theoretic operations of relational databases, these technologies make use of index-free, local traversals which means joins are of constant time. They are optimized for high-speed graph traversals. Examples are: neo4j, OrientDB etc.