The inventory class and types are one of the most powerful parts of the ManEx system. These classifications allow the users to break up large inventories into groups and sub-groups. The smaller groups make it easier to locate an item, to view reports by classes, and easier to identify a part. In ManEx, it also guides users in the addition of new parts, insuring that there are common approaches to descriptions for common parts. ManEx even will allow for automatic part number generation, where the user has only to enter a description, after selecting a part class and type. Utilization of the class and types greatly simplifies the amount of information that must be contained in the description and part number for each part. The user must enter part classes for each part, but is not required to enter part types. However, without the part types established, the user is required to enter much more data when adding specific items to the item master.