Hydra Framework
The Hydra Framework is a shared base of code which all of the Hydra Heads rely on. The Hydra Framework is also a set of tools and conventions which allow developers to rapidly create and iteratively refine new Hydra Heads to suit the needs of the developers.
The Hydra Framework sits on...consists of... Technical Framework and its Parts
Accompanying the Hydra Framework is a growing suite of tools, utilities, and services which help developers to collect, manage, and preserve repository content.