🧱 The Nexus Framework for Scaling Scrum
The Nexus framework is a scaled Scrum framework designed to help 3–9 Scrum Teams build a single integrated product together. It extends Scrum minimally—adding just enough structure to manage cross‑team dependencies and ensure that every Sprint results in a single, “Done,” integrated increment.
What Nexus is (definition and purpose)
Section titled “What Nexus is (definition and purpose)”Nexus is defined by Scrum.org as a framework for developing and sustaining scaled product delivery initiatives, built directly on top of Scrum. It exists to solve the hardest problem in multi‑team Agile delivery: integration.
- Multiple Scrum Teams work from one Product Backlog.
- They deliver one integrated increment every Sprint.
- Nexus adds one new accountability, several extended events, and a few additional artifacts—nothing more.
Core principles of Nexus
Section titled “Core principles of Nexus”- Empiricism at scale — transparency, inspection, and adaptation become even more critical when many teams collaborate.
- Dependency management — Nexus makes requirement, knowledge, and code dependencies visible and manageable.
- Integration as a first‑class concern — the framework centers on producing a single integrated increment each Sprint.
- Minimal extension of Scrum — Nexus avoids extra layers, roles, or bureaucracy. It preserves bottom‑up intelligence.
Nexus structure: roles, events, artifacts
Section titled “Nexus structure: roles, events, artifacts”Roles (Accountabilities)
Section titled “Roles (Accountabilities)”- Nexus Integration Team — the only new accountability.
- Ensures all teams’ work is integrated into a single increment.
- Includes the Product Owner, Scrum Master, and integration‑skilled members.
- Scrum Teams (3–9) — operate normally within the Nexus, but collaborate closely on integration.
Events
Section titled “Events”Nexus extends Scrum events to support multi‑team coordination:
- Cross‑Team Refinement — identifies and reduces dependencies before Sprint Planning.
- Nexus Sprint Planning — all teams plan together, aligning on a shared Sprint Goal.
- Nexus Daily Scrum — focuses on cross‑team impacts and integration issues.
- Nexus Sprint Review — inspects the integrated increment.
- Nexus Sprint Retrospective — three‑part retrospective: Nexus‑level, team‑level, and integration‑focused.
Artifacts
Section titled “Artifacts”- Single Product Backlog — shared across all teams.
- Nexus Sprint Backlog — aggregates all teams’ Sprint Backlogs.
- Integrated Increment — the combined, “Done” product increment from all teams.
Why Nexus exists
Section titled “Why Nexus exists”Scrum works extremely well for one team—but scaling introduces:
- shared codebases
- cross‑team dependencies
- integration failures
- inconsistent Definition of Done
- coordination overhead
Nexus addresses these by making integration explicit, assigning accountability, and creating events that expose and resolve cross‑team issues early.
Nexus vs. other scaling frameworks
Section titled “Nexus vs. other scaling frameworks”| Framework | Focus | Structure | Best for |
|---|---|---|---|
| Nexus | Integration & dependency management | Minimal | 3–9 teams, one product |
| LeSS | Organizational simplification | Light | 2–8 teams |
| SAFe | Enterprise‑level coordination | Heavy | Large organizations |
| Scrum@Scale | Modular scaling | Flexible | Organizations needing adaptability |
Takeaway
Section titled “Takeaway”Nexus is a lightweight, integration‑focused scaling framework built on Scrum, designed to help multiple teams deliver a single, high‑quality product increment every Sprint.