Implementing data tables in Cucumber using Selenium Ruby involves creating structured tables within feature files that facilitate repeated testing scenarios without redundancy. Data tables reduce repetitive code by storing values used across multiple tests, and they are particularly useful in Behavior Driven Development (BDD), which Cucumber supports. BDD enhances collaboration between developers and stakeholders by using natural language for acceptance tests, and Cucumber employs Gherkin syntax to write these tests. The article details setting up a Cucumber framework with Ruby, highlighting the use of page objects to manage locators separately, thus improving code maintainability. It also covers integrating tests with a cloud-based Selenium Grid like LambdaTest for cross-browser testing, which requires setting up remote web drivers. Debugging tips and the importance of correctly implemented data tables for robust test automation are also discussed, making Cucumber a valuable tool for ensuring reliable software development through automated testing.