The qualification of the product properties describes not only the quality of the properties, but also their origin.
| Value | Bit position | Identifier | Description |
| 0 | – | unknown | no more reference data can be determined for the property |
| 1 | 0 | unqualified | value is automatically generated from a single free text |
| 2 | 1 | automatically qualified | property qualified through several distributors or manual assignment |
| 4 | 2 | <reserved> | |
| 8th | 3 | ITscope manually qualified | manually added by ITscope |
| 16 | 4 | <reserved> | |
| 32 | 5 | Icecat qualified | Icecat qualified properties |
| 64 | 6 | manufacturer, automatically qualified | properties extracted from free texts supplied by the manufacturer |
| 128 | 7 | manufacturer, manually assigned | manually assigned manufacturer characteristics |
| 256 | 8th | <reserved> | |
| 512 | 9 | <reserved> | |
| 1024 | 10 | distributor, majority qualified | characteristics match for most of the distributors |
Example:
A property has a qualification of 1057 (1024 + 32 + 1):
- distributor majority-qualified (1024)
- Icecat qualified (32)
- single free text (1)
In binary form, the property looks like this: 0000_0100_0010_0001.