Final Answer:
Acceptance criteria are specific, predefined conditions or requirements that a product, project, or task must meet to be considered successfully completed.
Step-by-step explanation:
Acceptance criteria serve as a set of standards or benchmarks that define the expectations and quality standards for the completion of a project, task, or product. These criteria are established before the work begins and are used to objectively assess whether the deliverable meets the specified requirements. Acceptance criteria are essential in various fields, including software development, project management, and product manufacturing. They provide a clear understanding of what constitutes a successful outcome, helping to align the expectations of stakeholders and ensuring that the end result meets the intended purpose and quality standards.