If a Variant can not be assigned a name that is 25 characters or less using any of the first three tier naming schemes, the software resorts to a generic but unique name following the prototype “Var_number”. These are the same types of default Variant names used for Variants that are created from scratch in the Variant Definition Table of the Variants sub-tab of the Project Tab (see section 1.3.2.5.2): when a new Variant is created in that table using the “Add” function, it initially has no Reference and no pattern assigned to it, so there is no useful information with which to construct a meaningful default name. The generic name is constructed by obtaining a unique number from a counter and appending it to the prefix “Var_”.