TestRail was specifically designed to make entering and organizing test plan documents as easy as possible. Test plans can be organized in a number of ways. Test cases are the smallest unit, followed by test suites. Large projects can be split into milestones.
Each test case holds all the information required to run the test: preconditions, test instructions, expected results; you can even set priorities, and effort estimates. With only a few clicks you can duplicate test cases or entire test suites – very useful if you have a test plan document template.
To stay on track during your testing, TestRail provides a number of status and progress reports with various detail levels. From individual test runs, milestone reports, to one-page project dashboards, you always have exactly the information you need.
Try TestRail for free to see how you can organize your test plan documents.