FDD sub-processes in context

Like most agile processes FDD doesn't pretend to cover every aspect of the software development life-cycle. Just the essentials for establishing a common approach. In particular FDD doesn't explicitly state how and when releases of software occur during or following an FDD iteration.

Here's a diagram that attempts to put the releases in context and also shows the distinction between the first 3 sub-processes which define the project (or iteration), and the multiple instances of the 4th and 5th sub-processes which develop the project (iteration). There can be just one release at the end of an FDD iteration or (more normally?) several releases which deploy the developed software.