Apparatus for visual programming with screen flow

• US 6,055,369 A
• Filed: 05/06/1997
• Issued: 04/25/2000
• Est. Priority Date: 05/06/1997
• Status: Expired due to Term

• Current Assignee: Hitachi Software Engineering Co., Ltd. (Hitachi, Ltd.), Regents of The University of Minnesota (University of Minnesota)
• Original Assignee: Hitachi Software Engineering Co., Ltd. (Hitachi, Ltd.), Regents of The University of Minnesota (University of Minnesota)
• Inventors: Jiang, Tao, Sawahata, Tomoharu, Tsai, Wei-Tek, Onoma, Akira K.
• Primary Examiner(s): Hafiz, Tariq R.
• Assistant Examiner(s): DAS, CHAMELI
• Application Number:
  US08/852,033
• Time in Patent Office: 1,085 Days
• Field of Search: 395/342, 395/157, 395/500, 395/700, 395/702, 345/302, 345/326, 345/333
• US Class Current: 717/109
• CPC Class Codes: G06F 8/34 Graphical or visual programming

Abstract

An apparatus is disclosed for visual programming for creating a program with a visual user interface. The visual programming apparatus has a screen storage unit for storing multiple screens to be employed with the program; a screen creating unit for creating the multiple screens to be employed with the program and storing the multiple screens in the screen storage unit; a screen flow creating unit for creating a screen flow indicating a flow of processes by displaying on an edit screen the multiple screens stored in the screen storage unit in a compressed manner and specifying a link between the multiple compressed screens on the edit screen; a screen flow information extracting unit for extracting data of a link from the screen flow created by the screen flow creating unit; and a code creating unit for creating a source code from the data of the link extracted by the screen flow information extracting unit and from data of the screen.

Claims

1. An apparatus for visual programming for creating an application program having a visual user interface, comprising:

screen storage means for storing data of a plurality of screens to be employed with the application program;

screen creating means for creating the data of the plurality of screens to be employed with the application program and storing the data of the plurality of screens in said screen storage means;

screen flow creating means for creating a screen flow indicating a flow of processes, by displaying the data of the plurality of screens stored in said screen storage means in a compressed manner on an edit screen as compressed screens, specifying a link between each of the compressed screens and node elements on the edit screen, and displaying an arrow showing a direction of process flow between the compressed screens and node elements on the edit screen by the links;

screen flow information extracting means for extracting data of the links from said screen flow created by said screen flow creating means; and

code creating means for creating a source code from the data of the links extracted by said screen flow information extracting means and from data of said screen, and for storing the source code in an execution file.

2. An apparatus for visual programming as claimed in claim 1, further comprising:

execution means for displaying a course for executing processes at positions corresponding to the screen flow on the edit screen by displaying the screen flow created by said screen flow creating means on the edit screen, and for executing the execution file.

3. An apparatus for visual programming as claimed in claim 1, further comprising:

a screen flow control table for registering the compressed screens to be employed with the application program;

wherein said screen flow control table contains the links between each of the registered compressed screens.

4. An apparatus for visual programming as claimed in claim 1, further comprising:

a screen flow control table for registering the compressed screens to be employed with the application program;

wherein the screen flow control table contains a link between a program part in each of the compressed screens registered therein and each of the compressed screens in said screen flow control table.

5. An apparatus for visual programming as claimed in claim 1, further comprising:

a screen flow control table for registering the compressed screens to be employed with the application program;

wherein the screen flow control table contains a link between an item in each of the compressed screens registered therein and each of the compressed screens in said screen flow control table.

6. An apparatus for visual programming as claimed in claim 1,

wherein said screen flow creating means has a screen flow control table for registering the compressed screens to be employed with the application program;

and

wherein said screen flow control table registers attribute information of a link connecting a program part in each compressed screen registered therein to each of the compressed screens.

7. An apparatus for visual programming as claimed in claim 1,

wherein said screen flow creating means has a screen flow control table for registering the compressed screens to be employed with the application program;

and

said screen flow control table registers attribute information of a screen node identifier of a compressed screen belonging thereto, a flow start node identifier, a file name, a function name, and a connection node identifier.

8. An apparatus for visual programming as claimed in claim 1,

wherein said screen flow creating means displays a state in which a relationship of a position of a program part provided on each of said compressed screens is retained, when the compressed screens stored in said screen storage means are displayed on the edit screen in a compressed manner.

9. A programming method for creating an application program with a visual user interface, comprising:

first step of creating and storing data of a plurality of screens to be employed with the application program;

a second step of creating a screen flow indicating a flow of processes by displaying data of each of the plurality of screens stored in said screen storage means in a compressed manner on an edit screen as compressed screens, specifying a link between each of the plurality of compressed screens and node elements on the edit screen, and displaying an arrow showing a direction of process flow between the compressed screens and node elements on the edit screen by the links;

a third step of extracting data of the links from said screen flow; and

a fourth step of creating a source code from the data of the links and from data of said compressed screens.

10. A programming method for creating an application program as claimed in claim 9, wherein in the second step, a relationship of a position of a program part provided on each of said compressed screens is retained, when the compressed screens stored in said screen storage means are displayed on the edit screen in a compressed manner.