Method and apparatus for frame-based knowledge representation in the unified modeling language (UML)

• US 7,424,701 B2
• Filed: 02/12/2003
• Issued: 09/09/2008
• Est. Priority Date: 02/12/2002
• Status: Active Grant

• Current Assignee: Thematix Partners, LLC
• Original Assignee: Sandpiper Software, Inc.
• Inventors: Dutra, Mark Eric, Kendall, Elisa Finnie
• Primary Examiner(s): Dam; Tuan Q.
• Assistant Examiner(s): Yigdall; Michael J
• Application Number:
  US10/499,961
• Publication Number:
  US 20050034107A1
• Time in Patent Office: 2,036 Days
• Field of Search: None
• US Class Current: 717/105
• CPC Class Codes: G06N 5/027 Frames

Abstract

According to an embodiment of the present invention, there is provided a method and system for emulating a knowledge representation in a Unified Modeling Language (UML) environment. A Meta-Object Facility metamodel and UML profile are grounded in a foundation ontology. The elements representing the knowledge representation ontology are mapped to elements of UML, based on the grounded Meta-Object Facility metamodel and UML profile, thereby emulating the knowledge representation in a UML environment.

Claims

1. A method for emulating frame-based knowledge representation in Unified Modeling Language (UML), the method comprising:

grounding a Meta-Object Facility (MOF) meta-model and a UML profile in a foundation ontology,

wherein the foundation ontology defines concepts, relations, individuals, and methods that ground the MOF meta-model and the UML profile,

wherein the MOF meta-model is used to represent an abstract syntax of a particular knowledge representation paradigm or ontology language to facilitate model interchange purposes, and

wherein the UML profile is used to extend a UML language itself to enable UML tool users to use familiar notation for ontology modeling purposes; and

mapping elements of the frame-based knowledge representation to elements of UML based on the MOF meta-model and the UML profile,

wherein the frame-based knowledge representation describes knowledge using conceptual definitions and logic sufficient to support automated reasoning.

2. A system for emulating frame-based knowledge representation in Unified Modeling Language (UML), the system comprising:

a Meta-Object Facility (MOF) meta-model grounded in a foundation ontology,

wherein the foundation ontology defines concepts, relations, individuals, and methods that ground the MOF meta-model and the UML profile,

wherein the MOF meta-model specifies a structure for storing objects on a storage device, and

wherein the MOF meta-model is used to represent an abstract syntax of a particular knowledge representation paradigm or ontology language to facilitate model interchange purposes;

a UML profile grounded in the same foundation ontology,

wherein the UML profile is used to extend a UML language itself to enable UML tool users to use familiar notation for ontology modeling purposes; and

a logic component, executable on a processor, to map elements of the frame-based knowledge representation to elements of UML based on the MOF meta-model and the UML profile to thereby generate a resulting ontology, and to act on the resulting UML ontology,

wherein the elements of the frame-based knowledge representation include different frame types sufficiently specified to enable inference and reasoning.

3. A method for creating an ontology in Unified Modeling Language (UML), the method comprising:

accepting as input an ontology name and one or more ontology elements, each ontology element corresponding to at least one of a term, concept, and relationship between concepts, the ontology elements forming a detailed specification of the ontology;

generating a logically equivalent ontology with UML model elements based on a UML profile grounded in a foundation ontology,

wherein the foundation ontology defines concepts, relations, individuals, and methods that ground a Meta-Object Facility (MOF meta-model and the UML profile,

wherein the MOF meta-model is used to represent an abstract syntax of a particular knowledge representation paradigm or ontology language to facilitate model interchange purposes, and

wherein the UML profile extends a UML language to enable UML tool users to use familiar notation for ontology modeling purposes; and

presenting the logically equivalent ontology to a user in a UML environment.

4. The method of claim 3, wherein said generating the logically equivalent ontology with Unified Modeling Language (UML) model elements includes generating a UML package and class for each frame type of an ontology.

5. The method of claim 3, wherein said generating the logically equivalent ontology with Unified Modeling Language (UML) model elements includes generating a UML association for specific ontology elements.

6. The method of claim 3, wherein said generating the logically equivalent ontology with Unified Modeling Language (UML) model elements includes generating a UML operation for specific ontology elements.

7. The method of claim 3, further comprising:

generating code representing the ontology in a language specific to a particular knowledge representation format.

8. The method of claim 7, wherein said generating code includes generating code that meets DAML+OIL specification.

9. The method of claim 7, wherein said generating code includes generating code that meets W3C Web Ontology Language (OWL) specification.

10. The method of claim 7, wherein said generating code includes generating code that meets Open Knowledge Base Connectivity (OKBC) specification.

11. The method of claim 3, wherein said accepting as input the ontology name and the one or more ontology elements includes validating the ontology name and the one or more ontology elements.

12. The method of claim 3, wherein said accepting as input the ontology name and the one or more ontology elements includes accepting manual input from a user.

13. The method of claim 3, wherein said accepting as input the ontology name and the one or more ontology elements includes importing the ontology name and the one or more of the ontology elements from at least one of an existing knowledge base and another ontology representation.

14. A system for creating an ontology in Unified Modeling Language (UML), the system comprising:

a processor;

a user input and validation component, executable on the processor, to accept as input an ontology name and one or more ontology elements, each ontology element corresponding to at least one of a term, concept, and relationship between concepts, the ontology elements forming a detailed specification of the ontology;

an ontology logic component to generate a logically equivalent ontology with UML model elements based on a UML profile grounded in a foundation ontology,

wherein the foundation ontology defines concepts, relations, individuals, and methods that ground a Meta-Object Facility (MOF) meta-model and the UML profile,

wherein the MOF meta-model is used to represent an abstract syntax of a particular knowledge representation paradigm or ontology language to facilitate model interchange purposes, and

wherein the UML profile is used to extend a UML language to enable UML tool users to use familiar notation for ontology modeling purposes; and

a UML tool to present the logically equivalent ontology to a user in a UML environment.

15. The system of claim 14, wherein the ontology logic component is to generate a Unified Modeling language (UML) package and class for each frame type of the ontology.

16. The system of claim 14, wherein the ontology logic component is to generate a Unified Modeling Language (UML) association for specific ontology elements.

17. The system of claim 14, wherein the ontology logic component is to generate a Unified Modeling Language (UML) operation for specific ontology elements.

18. The system of claim 14, further comprising:

a code generator, executable on the processor, to generate code representing the ontology using a language specific to a particular knowledge representation format.

19. The system of claim 18, wherein the code generator is to generate code that meets DAML+OIL specification.

20. The method of claim 18, wherein the code generator is to generate code that meets Web Ontology Language (OWL) specification.

21. The method of claim 18, wherein the code generator is to generate code that meets Open Knowledge Base Connectivity (OKBC) specification.

22. The system of claim 14, wherein the user input and validation component is to validate the ontology name and the one or more ontology elements.

23. The system of claim 14, wherein the user input and validation component is to accept and to validate manual input from the user.

24. The system of claim 14, wherein the user input and validation component is to accept and to validate the ontology name and the one or more ontology elements from at least one of an existing knowledge base and another ontology representation.