Abstract: Providing a user interface for configuring a computer-executable application includes receiving a specification defining: relationships among user interface elements, the relationships based on dependencies between components of a dataflow graph that includes multiple nodes representing components of the dataflow graph and links between the nodes representing flows of data between the components, parameters defining respective characteristics of the components of the dataflow graph, and variables defining respective characteristics of the user interface elements. During operation of a user interface, user interface elements are displayed based on the relationships defined in the specification.

Abstract: A method for supporting communication between a client and a server includes receiving a first message from a client. The method also includes creating an object in response to the first message. The method also includes sending a response to the first message to the client. The method also includes receiving changes to the object from a server. The method also includes storing the changes to the object. The method also includes receiving a second message from the client. The method also includes sending the stored changes to the client with a response to the second message.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for specifying a compound control. One of the methods includes identifying a first application. The method includes displaying a canvas. The method includes displaying, in the canvas, a first display object associated with the first application. The method includes identifying a second application, the second application being a computer executable program. The method includes displaying, in the user interface, a second display object associated with a second application. The method includes, in response to a user action that associates the second display object with the first display object, configuring the first application to invoke the second application. The method includes creating a third display object that includes the first set of selector objects and the second set of selector objects.

Abstract: A method for supporting communication between a client and a server includes receiving a first message from a client. The method also includes creating an object in response to the first message. The method also includes sending a response to the first message to the client. The method also includes receiving changes to the object from a server. The method also includes storing the changes to the object. The method also includes receiving a second message from the client. The method also includes sending the stored changes to the client with a response to the second message.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for specifying a compound control. One of the methods includes identifying a first application. The method includes displaying a canvas. The method includes displaying, in the canvas, a first display object associated with the first application. The method includes identifying a second application, the second application being a computer executable program. The method includes displaying, in the user interface, a second display object associated with a second application. The method includes, in response to a user action that associates the second display object with the first display object, configuring the first application to invoke the second application. The method includes creating a third display object that includes the first set of selector objects and the second set of selector objects.

Abstract: A method for supporting communication between a client and a server includes receiving a first message from a client. The method also includes creating an object in response to the first message. The method also includes sending a response to the first message to the client. The method also includes receiving changes to the object from a server. The method also includes storing the changes to the object. The method also includes receiving a second message from the client. The method also includes sending the stored changes to the client with a response to the second message.

Abstract: A method for supporting communication between a client and a server includes receiving a first message from a client. The method also includes creating an object in response to the first message. The method also includes sending a response to the first message to the client. The method also includes receiving changes to the object from a server. The method also includes storing the changes to the object. The method also includes receiving a second message from the client. The method also includes sending the stored changes to the client with a response to the second message.

Abstract: A method for supporting communication between a client and a server includes receiving a first message from a client. The method also includes creating an object in response to the first message. The method also includes sending a response to the first message to the client. The method also includes receiving changes to the object from a server. The method also includes storing the changes to the object. The method also includes receiving a second message from the client. The method also includes sending the stored changes to the client with a response to the second message.

Abstract: Providing a user interface for configuring a computer-executable application includes receiving a specification defining: relationships among user interface elements, the relationships based on dependencies between components of a dataflow graph that includes multiple nodes representing components of the dataflow graph and links between the nodes representing flows of data between the components, parameters defining respective characteristics of the components of the dataflow graph, and variables defining respective characteristics of the user interface elements. During operation of a user interface, user interface elements are displayed based on the relationships defined in the specification.