Abstract: A method, computer system, and computer program product display a set of tiles within a first area of a graphical user interface. Each tile corresponds to a set of data nodes that are composable structured data objects according to a domain-specific language. A structured data object is composed from selected tiles and is displayed within a second area of the graphical user interface. Displaying the structured data object includes displaying a first tile and a second tile within a context of the structured data object. A value override is displayed at the first tile when a first value of the first set of data nodes is overridden by a second value of the second set of data nodes.

Abstract: A method, computer system, and computer program product compose a business rule. A computer system displays a set of tiles within a first area of a graphical user interface, each tile corresponding to a set of data nodes that are composable into structured data objects according to a domain-specific language. Dragging a selected tile from the first area to a drop zone within a second area of the graphical user interface appends the corresponding set of data nodes into a structured data object. Receiving a user input that sets focus on the drop zone displays a text field that replaces the drop zone w. A drop-down list is associated with the text field. The drop-down list consists of a set of permissible tiles for data nodes that can be appended to the structured data object according to a context of the structured data object.

Abstract: A method, computer system, and computer program product compose a business rule. A computer system displays a set of tiles within a first area of a graphical user interface, each tile corresponding to a set of data nodes that are composable into structured data objects according to a domain-specific language. Dragging a selected tile from the first area to a drop zone within a second area of the graphical user interface appends the corresponding set of data nodes into a structured data object. Receiving a user input that sets focus on the drop zone displays a text field that replaces the drop zone w. A drop-down list is associated with the text field. The drop-down list consists of a set of permissible tiles for data nodes that can be appended to the structured data object according to a context of the structured data object.

Abstract: A method, computer system, and computer program product display a set of tiles within a first area of a graphical user interface. Each tile corresponds to a set of data nodes that are composable structured data objects according to a domain-specific language. A structured data object is composed from selected tiles and is displayed within a second area of the graphical user interface. Displaying the structured data object includes displaying a first tile and a second tile within a context of the structured data object. A value override is displayed at the first tile when a first value of the first set of data nodes is overridden by a second value of the second set of data nodes.