The typical size for a Scrum Team is 10 or fewer people, including the Product Owner, the Scrum Master, and the Developers. The Scrum Guide states that "The Scrum Team is small enough to remain nimble and large enough to complete significant work within a Sprint. Fewer than three people decrease interaction and results in smaller productivity gains. Having more than ten people requires too much coordination. Large teams generate too much complexity for an empirical process to be useful."1 This means that the optimal Scrum Team size is between 3 and 10 people, depending on the context and the nature of the work.

References:

• 1: The Scrum Guide2, page 6
• 2: The Scrum Guide

• A Product Owner is not the same thing as a traditional Project Manager. A Product Owner is a role in Scrum, a framework for developing, delivering, and sustaining complex products. A Project Manager is a role in traditional project management, a discipline for planning, executing, and controlling projects.
• A Product Owner is accountable for maximizing the value of the product resulting from the work of the Scrum Team. The Product Owner is responsible for managing and refining the Product Backlog, collaborating with the stakeholders and the Developers, and ordering the items in a way that best achieves goals and missions. The Product Owner represents the interests of everyone with a stake in the product and ensures that the Scrum Team works on the right things at the right time.
• A Project Manager is accountable for delivering the project within the predefined scope, time, and cost constraints. The Project Manager is responsible for defining and managing the project plan, resources, risks, issues, and dependencies. The Project Manager coordinates and controls the activities of the project team and the stakeholders and ensures that the project meets the quality standards and expectations.
• Some of the main differences between a Product Owner and a Project Manager are:

References:

• Scrum Guide: https://www.scrumguides.org/scrum-guide.html
• Product Owner: https://www.scrum.org/resources/what-is-a-product-owner
• Project Manager: https://www.pmi.org/about/learn-about-pmi/what-is-project-management

• The Developers are the people in the Scrum Team who are accountable for creating a “Done” Increment that meets the Definition of Done each Sprint. The Developers are responsible for planning and executing the Sprint Backlog, designing and building the product functionality, testing and improving the product quality, and delivering a potentially releasable Increment. The Developers work closely with the Product Owner to understand and clarify the Product Backlog items, provide feedback and estimates, and suggest improvements and innovations.
• The Definition of Done is a formal description of the state of the Increment when it meets the quality measures required for the product. The Definition of Done is used to assess when work is complete on the product Increment.
• The amount of work required of the Developers to complete a Product Backlog item selected during the Sprint Planning depends on the Definition of Done. The Definition of Done may vary from one Scrum Team to another, depending on the context and domain of work. However, it must be consistent within one team. If there are multiple Scrum Teams working on one product, they must share a common Definition of Done. If there is an organizational standard for a Definition of Done, all Scrum Teams must follow it as a minimum.
• The Developers must ensure that each Product Backlog item they complete during a Sprint meets the Definition of Done. This means that they must perform all the necessary tasks and activities to deliver a high-quality product functionality that is usable, valuable, and potentially releasable. This may include analysis, design, development, testing, documentation, integration, deployment, or any other aspects that contribute to the quality and usability of the product.
• The other options are not valid or relevant measures for the amount of work required of the Developers to complete a Product Backlog item. They are either too vague, arbitrary, or unrealistic. They are:

References:

• Scrum Guide: https://www.scrumguides.org/scrum-guide.html
• Definition of Done: https://www.scrum.org/resources/what-is-a-definition-of-done
• Developers: https://www.scrum.org/resources/what-is-a-developer-in-scrum

Scrum

The two primary ways a Scrum Master helps a Scrum Team work at its highest level of productivity are by facilitating Scrum Team decisions and by removing impediments that hinder the Scrum Team12. The Scrum Master is a facilitator and a coach, helping the team remove impediments and facilitating team decisions12. This enables the team to focus on their work and maintain their productivity12.

The Scrum Master should talk to the IT manager and explain that progress in Scrum comes from inspecting an Increment at the Sprint Review. This is because:

• The Scrum Team is self-managing and does not need to report to anyone outside the team1.
• The Sprint Review is an event where the Scrum Team and the stakeholders collaborate on the product and inspect the Increment2.
• The Increment is a concrete and usable outcome of the Sprint that provides a measure of progress and value delivery3.
• The IT manager can attend the Sprint Review as a stakeholder and provide feedback on the product and the process4.

References:

• Scrum Guide, page 7, section “The Scrum Team”
• Scrum Guide, page 13, section “Sprint Review”
• Scrum Guide, page 10, section “Increment”
• Scrum Guide, page 14, section “Sprint Review”