Types of Inspection Characteristics
You can define item based and non-item based inspection characteristics.
Item Based Inspection Characteristics
You can map attribute values defined for a given item class to an item-based characteristic in order to verify that an item meets the required product specifications when you are performing an inspection. For example, in your item definition, you have attributes for Minimum Weight, Maximum Weight, and Optimal Weight defined in your Physical Attributes item class. You've specified the appropriate value for those attributes for each of your items in the item definition. You can define an item-based characteristic called Weight, where you can map the value of "Item Class" to Physical Attributes, the value of "Target Attribute Reference" to Optimal Weight, "Minimum Attribute Reference" to Minimum Weight, and "Maximum Attribute Reference" to Maximum Weight.
Non-Item Based Inspection Characteristics
You can define inspection characteristics that aren't mapped to item attribute values. These non-item inspection characteristics can be of type: Number, Character, or Date. You must specify a target value for all of the types, and where applicable, a range or list of valid values as well as a unit of measure.
For a non-item inspection characteristic of type: Character, you can choose not to specify a value set. This enables you to enter free-form text for that characteristic during an inspection. Any result entered for such a characteristic added directly to an inspection or as part of an inspection plan is accepted without an evaluation against specifications, and is recorded for data collection purposes.
You can use the non-item based inspection characteristics for both item and resource related inspections.