Once a solution has been implemented it is important to test it, both to ensure that the solution has actually resolved the problem, and to check that it has not introduced any new problems.
You should start by producing a Test Plan, showing what tests are to be carried out and the purpose and expected result of each test.
During testing you should keep a Test Log, recording what actually happened when each test was carried out. If any test does not produce the expected results you may have to amend to solution to ensure that it does.
When testing has been completed to your satisfaction the whole process should be signed off by the client to indicate that they are happy with the outcome.
Congratulations! You have now completed the Troubleshooting Computing Problems course. Remember, you can go back to any section by using the menu near the top of the page.