US Patent 8454369 Extensible exam language (XXL) protocol for computer based testing

A memory stores a plurality of first data structures, which includes element specific data objects indicating a classification of at least one of the plurality of segments of the test definition language, and second data structures, which include attribute specific data objects indicating at least one attribute of the segments of the test definition language implemented by a computer. A method for computer-based testing includes authoring a test specification and content of the at least one test using a test definition language, compiling the test specification and content of the at least one test to create a compiled test specification and content, which includes validating the test specification and content, storing the compiled test specification and content to a resource file, and retrieving the compiled test specification and content from the resource file during delivery of the test.