The tests are meant to measure how well a person can function in real-life situations in a foreign language according to well-defined linguistic tasks and assessment criteria. Originally paper tests, they are increasingly delivered by computer. Scoring for the current (2007) series of tests, called DLPT5, are, like their predecessors, based on the guidelines of the Interagency Language Roundtable (ILR), with the test results stated as levels 0+ through 3 or up to 4 for some languages.