developers & testers developers & testers product owner product owner scrum master scrum master team backlog stories iteration planning team demo features & components iterations iterations iterations iterations team demo iteration retrospective iteration retrospective hardening | innovation | planning hardening | innovation | planning stories tasks spikes refactors team roadmap roadmap vision vision product management release management program backlog system team release planning team backlog feature feature feature feature architectural feature psi/release objectives agile release train psi | release release planning release planning psi | release inspect & adapt inspect & adapt features program investment themes portfolio management portfolio backlog portfolio vision business epic epics architectural epic kanban business epic kanban architecture architectural epic portfolio release train engineer non-functional requirements nonfunctional requirements nonfunctional requirements nonfunctional requirements team backlog shared resources lean enterprise architect economic prioritization with weighted shortest job first (wsjf) economic prioritization with weighted shortest job first (wsjf) system architect user experience metrics business epic epic owner epic owner system demo architectural epic agile teams code quality architectural runway architectural runway architectural runway business epics architectural epics