Selector Strategy and Stable Locators Questions

Explain principles for choosing stable maintainable selectors for user interface automation. Emphasize use of explicit element identifiers, accessibility labels, and dedicated test attributes such as data test id rather than brittle cascade style sheet selectors or path based locators. Discuss trade offs between selector types, strategies for composing resilient selectors that tolerate UI changes, fallback approaches when identifiers are not available, collaboration with engineers to add stable hooks, and how selector strategy integrates with test maintainability and reliability practices.