Failure mode Unique number that APM assigns to the failure mode. See Also Failure Mode A failure mode is an event that causes an asset to fail to perform its function. For example, if a pump’s impeller becomes worn, the pump cannot convey liquid at the required rate. When failure mode optimization requires Isograph Availability Workbench, this attribute is mapped to the cause description in AWB. See Also Asset number The number used to identify the asset. When you create an asset, APM automatically enters a unique asset number, but you can change it if necessary. Each asset must have a unique number not more than 50 characters long. If this box is left blank or if the number is not unique, an error message appears. See Also Title The name or short description of this item. You can enter up to 250 characters.