Iteration

The definition of the term Iteration in the context of software development - iterative and incremental development with some explanation from wikipedia

Look at Scrum Management or Adaptive management for a similar concept.

While Enterprise Architecture is not developing software per se, it can use the logic of the iterative concept (and Phase concept) to incrementally enhance:

• It's own capability and process specification. Following the 'Adapt the Process' Principle
• The Enterprise knowledge base as it gathers it over time, Project by Project.
• Maturing both the EA Process and the Enterprise Architecture over time Following the 'Demonstrate value iteratively' Principle