It is important to remember that a Developer is not necessarily a software developer. They can focus on any type of product work whether software or not and any aspect of helping to design, build, test or ship the product. The specific skills needed by the Developers are often broad and will vary based on the type of work they are doing.| Scrum.org
Sprints are fixed length periods of work that last one month or less to create consistency and ensure short iterations for feedback in order to inspect and adapt both how work is done and what is being worked on. If cycles are longer, then the spirit of frequent feedback cycles can be lost. Longer Sprint may also get too complex and may increase risk. A new Sprint starts immediately after the conclusion of the previous Sprint.| Scrum.org
As a member of the Scrum Team, the Product Owner provides clarity to the team about a product’s vision and goal. All work is derived and prioritized based on the Product Goal in order to deliver value to all stakeholders including those within their organization and all users both inside and out.| Scrum.org
The ultimate place to learn more about Scrum from the organization that created it. These resources include videos, papers, guides and much more.| Scrum.org