| Name | Description | Type | Additional information | 
|---|---|---|---|
| PrefList | Collection of ItemPreference | 
                             None.  | 
                |
| ProductPrefList | Collection of ItemProductPreference | 
                             None.  | 
                
| Name | Description | Type | Additional information | 
|---|---|---|---|
| PrefList | Collection of ItemPreference | 
                             None.  | 
                |
| ProductPrefList | Collection of ItemProductPreference | 
                             None.  |