In accordance with the quality assurance team, we have chosen to use the same test specification design for all the projects manage within our instance of TestLink. This design matches the level of tests defined by ISTQB.

When you write your test specifications, please follow the principals enounced below:

• Three main test suites shall be created
• unit testing
• integration testing
• system testing
• Unit testing shall contains at least the two test cases:
• Static analysis (might ask to  consult sonar analysis available at http://gazelle.ihe.net/sonar)
• Unit tests (might ask to consult the JUnit test results available in Sonar)
• Integration testing might be application dependant, there isn't a unique pattern which can be applied but you may need something like
• Web service interface (client side)
• Web service interface (server side)
• IHE interface (responder side)
• IHE interface (initiator side)
• ... other integration stuff
• System testing test suite shall be built based on the requirement specifications:
• On child test suite per requirement specification section

Below is an example taken from Gazelle HL7 Validator test project.

Attached is an XML export of the basic test specifications that you can import into your project as a basis for your test specification writing. Also available here.

For the "System testing" test suite you can save time by using a feature from TestLink. In the Requirements page, for each section, you have a button named "Create Test Cases". You will be asked to select the requirements for which you want to generate test cases and then a new test suite will be created in your Test Specification. You only have to drag and drop the newly created test suite to the "System testing" test suite and complete the test cases.