When a user uses a filter, there are only 4 item descriptors available.
Key identifiers for product data take up at least 3 descriptors automatically
1) Product ID
2) Product Name
3) Item status - represents different states of an item (e.g., Assigned, Orderable, Retired)
It would be useful to have additional descriptors in case addtional attributes are needed such as Release, Platform or Deployment, Effectivity dates, for example.