Refinement

Here I would like to talk about product backlog refinement meeting, including what activities should be in this meeting, who should join this meeting and why we need refinement meeting.

Why to have product backlog refinement meeting

As the figure above, it occurs during sprint for product backlog refinement meeting, and normally no more than 5% total time of sprint. E.g during sprint 1, Product Owner (PO) will conduct refinement meeting for sprint 2 and sprint 3. So refinement is like beam of a car, normally we should choose low-beam model, otherwise we would like to watch something far away ahead, we need to switch the headlights to high-beam model. Refinement is the high-beam model for team. (Thank Daniel Teng for above metaphor)