# Terminology

<table><thead><tr><th width="214.421875">Term</th><th></th></tr></thead><tbody><tr><td>Flow</td><td>Your Flow is a infinite canvas where you can design your tests.</td></tr><tr><td>Branch</td><td>Branches is when your Flow has multiple possible routes.</td></tr><tr><td>Test Case</td><td>A Test Case is a specific and unique route through a Flow.</td></tr><tr><td>Run</td><td>A Run is a collection of Test Cases started together.</td></tr><tr><td>Test Runner</td><td><p>A Test Runner executes your test cases. The number of runners you have determines how many test cases can run simultaneously.</p><p><br>For example, if you have 20 runners, up to 20 test cases can run in parallel. As each test case finishes, the next one in the queue starts automatically.</p></td></tr></tbody></table>