Abstract: A test method for relevancy testing of an identifier able to be transmitted to a communication means by way of a communication network in a message, a test module therefor and a generating module for building a relevancy table provided for the testy method. In the test method a first position in the relevancy table is sought for the identifier on the basis of a calculating rule applied to the identifier or a on the basis of a second position alternative to the latter using a move-on rule applied to the identifier in a case of conflict, in which the first position is not available until an available position is found. The identifier is designated as being relevant, when at the first or the second position the identifier or a value associated with it is entered or as being irrelevant, when at the first or the second position a non-use marker is entered.