What best defines a test strategy?

A test strategy is best defined as a high-level document that outlines the overall approach to testing, including the objectives, scope, resources, and activities needed to achieve the testing goals. This document serves as a foundation for aligning the testing process with the overall project objectives and establishes a framework that guides the testing effort throughout the software development lifecycle.

In the context of software testing, having a clear and defined strategy is crucial for ensuring that all stakeholders understand the testing goals and how they will be achieved. This high-level perspective helps in making informed decisions regarding resource allocation, risk management, and prioritization of testing activities.

The other options focus on more specific components of the testing process. A detailed plan outlining specific test cases refers to a test plan or test case documentation, which is narrower in focus than a test strategy. A list of all test deliverables and schedules might be more relevant to project management and does not encapsulate the comprehensive overview provided by a test strategy. Lastly, while integrating testing within the software development lifecycle is important, it falls under operational practices rather than defining the overarching approach and objectives that a test strategy encompasses.