Nexus: Scaling Scrum without Complexity

Nexus is an Agile scaling framework based on Scrum. It helps multiple Scrum teams collaborate on a single product without abandoning the core principles of Scrum. Nexus was designed by Scrum.org and is often used by organizations looking to scale Agile without additional management layers and bureaucracy.

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What Makes Nexus Unique?

• Minimalist and Lightweight – Nexus only adds necessary coordination to standard Scrum.
• Focus on a Single Product – All teams collaborate on a single Product Backlog.
• Strong Emphasis on Integration – Teams continuously align to minimize dependencies and integrate their work as early as possible.
• Limits Additional Roles and Events – Adheres to the core principles of Scrum.

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The goal of Nexus is to increase the effectiveness of multiple Scrum teams without unnecessary processes.

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How Does Nexus Work?

Nexus retains the basic principles of Scrum but adds extra coordination for collaboration between teams.

1. A Single Product Backlog and One Product Owner

Just like in standard Scrum, there is a single Product Backlog, managed by a Product Owner. All teams work from the same backlog and coordinate to prevent overlap and conflicts.

2. Nexus Integration Team (NIT)

A new element in Nexus is the Nexus Integration Team (NIT). This team helps with:

• Managing dependencies between teams.
• Monitoring the quality and integration of work.
• Facilitating collaboration between teams.

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The NIT consists of experienced team members, Scrum Masters, and sometimes the Product Owner. It is not an additional management layer, but a supportive team to foster collaboration.

3. Expansion of Scrum Events

Nexus retains the standard Scrum events but adds an additional layer:

• Sprint Planning – Teams plan collaboratively and distribute work among themselves.
• Daily Scrum – Teams coordinate on dependencies with other teams.
• Sprint Review – Joint demonstration by all teams to stakeholders.
• Sprint Retrospective – In addition to individual team retrospectives, there is a joint retrospective to discuss organization-wide improvements.

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This additional layer ensures smooth collaboration without teams losing their agility.

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When is Nexus suitable?

Nexus works well when:

• Multiple Scrum teams are working on a single product and need to collaborate efficiently.
• Organizations want to scale Scrum without adding extra management layers.
• Teams are highly dependent on each other's work, making integration and coordination essential.

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Nexus is less suitable when:

• Teams work completely independently and require little integration.
• An organization is accustomed to hierarchical structures and expects a lot of direction.
• There are multiple products, because Nexus is specifically designed for collaboration on a single product.

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Nexus versus LeSS

Nexus focuses strongly on integration and collaboration between teams, while LeSS (Large Scale Scrum) is more focused on minimizing processes and preserving Scrum in its purest form. Key differences:

• Nexus focuses on collaboration and integration between teams with a single shared Product Backlog and a supporting Nexus Integration Team.
• LeSS keeps Scrum as pure as possible and minimizes coordination without adding extra roles.

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Common mistakes with Nexus

1. Insufficient focus on integration – Teams only focus on their own work and forget dependencies with other teams.
2. The Nexus Integration Team functions as an additional management layer – The NIT should support teams, not direct them.
3. Poor coordination between teams – If teams don't align properly, work can stall and chaos ensues.
4. Using Nexus without strong Scrum foundations – Nexus only works if Scrum is already well implemented within the organization.

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