Polyglot Persistence
Emil Eifrem [1]:
We’re big believers in whole concept of polyglot persistence and polyglot persistence is the observation that in the future and even today datasets are just so complex that in order to get both convenience in programming, but also runtime benefits such as performance and scalability, you need to take parts of your dataset and squeeze them into different types of databases.
[1] Emil Eifrem: CEO NeoTechnologies, @emileifrem
Original title and link: Polyglot Persistence (NoSQL databases © myNoSQL)