Development Process for New Major Features

Make it clear to the community of new feature development happening at a high level
Make it easier to correlate features with JIRAs
Make it easier to track progress for features in development
Make it easier to understand estimated release schedule for features in development

Create a JIRA of type "Epic" for the new feature in Apache Ambari JIRA
Add the feature to the Features + Roadmap wiki and link it to the Epic created
The Epic should contain a high-level description that is easy to understand
The Epic should also contain the initial, detailed design (this can be in the form of a shared Google Doc for ease of collaboration, Word doc, pdf, etc)
Once the initial design is posted, announce to the dev mailing list to elicit feedback (Subject: [DISCUSS] Epic Name. Be sure include a link to the Epic JIRA in the body). It is recommended to ask for review feedback to be given by a certain date so that the review process does not drag on.
Iterate on the design based on community feedback. Incorporate multiple review cycles as needed.
Once the design is finalized, break it down into Tasks that are linked to the Epic
(Nice to have) Once the Tasks are defined, schedule them into sprints using the Agile Board so that it's easy to see who is working on what/when, what tasks remain but unassigned so the community can pick up work from the backlog, etc.

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