The sprint is the heartbeat of scrum, during the sprint the increment is created. The increment must be usable and all the work that ' s part of the increment should adhere to the definition of done.

Detailed Explanation: Scrum emphasizes quality from the start. Testing and quality expertise are integral throughout all Sprints to ensure continuous feedback and integration of quality measures.

It is false, the developers select the items, because they will have to commit to it.

Detailed Explanation: In Scrum, system architecture evolves iteratively. Decisions are made throughout development as more is learned about the requirements and product, aligning with Agile principles.

TDD stands for test driven development. It makes developers think before starting to code. This leads to better organized code. It requires the developer to write the code for the test first, the test fails because the code it ' s testing doesn ' t exist yet.

Detailed Explanation: Product documentation can be part of a Done Increment if it adds value and meets the Definition of Done. Scrum does not prescribe documentation but emphasizes delivering value to stakeholders.

Detailed Explanation: The first Sprint is focused on delivering a valuable and usable Increment. This embodies Scrum ' s iterative approach, where value is delivered early and feedback is gathered.

Hiding the bug won ' t make it go away. Discussing with the product owner is a good step to take, because he knows what work leads to maximum value.

Detailed Explanation: Automated test harnesses include Functional, Unit, Integration, and Performance tests to ensure robust and reliable quality control. Exploratory and manual tests are typically not automated.

The DoD helps the developers know how much work needs to be done, and therefore they can decide what should be part of the sprint. It also creates a shared understanding of what done means. This is likely to include documentation, but that depends on the decisions of the organization and team. Scrum does not dictate this.