Email me if you would like an Access Database.
The User Requirements have been established and define the conditions that the Model must comply with to ensure that the Database will support the business.
This diagram shows my first draft, based on the concept that all Tests involve a number of Data Items, depending on the Type of Test.
Here's my version of the second ERD from the User,
and here's the original draft from the User.
August 9th. 2008