Design Documents: Vault
=======================

What follows is a summary of Lumiera's *Data Handling Backend*

This is the foundation layer responsible for any high performance or high volume
data access. Within Lumiera, there are two main kinds of data handling:

* The Session and the object models manipulated through the GUI are kept in memory.
  They are backed by a _storage backend,_ which provides database-like storage and
  especially logging, replaying and ``Undo'' of all ongoing modifications..
* Media data is handled _frame wise_ -- prefetching data asynchronously.

The goal is to optimize CPU utilization; large scale data IO will be performed
asynchronously. Data retrieval and processing of prerequisites will
be *scheduled* such as to manage the rendering _just in time_.