If we put them together, a big database can be created. This is indeed this Web site's intention. Any language instructor who is willing to pour his or her small database into this big database will have the right to use this database. There are many advantages to have such a big database. A test can be created on the Web, and taken on the Web.
Students can get the results immediately.
What's more, testing items are also being tested. Item statistics can be automatically recorded into the database so that we know later how difficult each item is. The database will also allow creation of test specifications or blueprints as we accumulate larger numbers of similar test items. With a careful design, such a database can become extremely useful for both language instructors and researchers.