Abstract: Example embodiments of a two-model user interface system are described. In an example embodiment, first information of a user interface model is presented via a user interface, the first information of the user interface model based on data available at a data processing system. User input indicating a selected portion of the first information is received via the user interface. A communication model is updated to include the selected portion of the first information, and the user interface model is updated to include an indication of the selected portion of the first information. The selected portion of the first information is communicated from the communication model to the data processing system based on the updating of the communication model.

Abstract: Example embodiments of a user interface system employing nested data are described. In an example embodiment, first data items of a first data source available for selection is presented via a user interface, the first data items including an association with a second data source. A first user selection of the association with the second data source is received via the user interface. In response to the first user selection, second data items of the second data source available for selection are presented via the user interface. A second user selection of a data item of the second data items is received via the user interface. In response to the second user selection, an indication of the selected data item of the second data items is presented.

Abstract: Example embodiments of compatibility checking for user interface customization are described. In an example embodiment, a first user interface view including first data items is accessed, each of the first data items referencing a corresponding data item of a data source. Whether the first user interface view is referenced by a second user interface view is determined. Based on the first user interface view not being referenced by a second user interface view, changes to any of the first data items of the first user interface view are allowed during a design time of the first user interface view. Based on the first user interface view being referenced by the second user interface view, one or more of the first data items of the first user interface view being referenced by the second user interface view are identified, and changes to the identified data items are prevented.

Abstract: Example embodiments of a two-model user interface system are described. In an example embodiment, first information of a user interface model is presented via a user interface, the first information of the user interface model based on data available at a data processing system. User input indicating a selected portion of the first information is received via the user interface. A communication model is updated to include the selected portion of the first information, and the user interface model is updated to include an indication of the selected portion of the first information. The selected portion of the first information is communicated from the communication model to the data processing system based on the updating of the communication model.

Abstract: Example embodiments of compatibility checking for user interface customization are described. In an example embodiment, a first user interface view including first data items is accessed, each of the first data items referencing a corresponding data item of a data source. Whether the first user interface view is referenced by a second user interface view is determined. Based on the first user interface view not being referenced by a second user interface view, changes to any of the first data items of the first user interface view are allowed during a design time of the first user interface view. Based on the first user interface view being referenced by the second user interface view, one or more of the first data items of the first user interface view being referenced by the second user interface view are identified, and changes to the identified data items are prevented.

Abstract: Example embodiments of a user interface system employing nested data are described. In an example embodiment, first data items of a first data source available for selection is presented via a user interface, the first data items including an association with a second data source. A first user selection of the association with the second data source is received via the user interface. In response to the first user selection, second data items of the second data source available for selection are presented via the user interface. A second user selection of a data item of the second data items is received via the user interface. In response to the second user selection, an indication of the selected data item of the second data items is presented.