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Executive Summary

This document provides a comprehensive description of the IDEF5 Ontology Capture Method.

Its purpose is to guide a person in becoming proficient in applying IDEF5 to develop and manage

domain ontologies effectively.

The IDEF5 Method Report is designed for the following audience:

• Knowledge engineers and application domain experts interested in developing,

documenting, storing, and sharing domain knowledge;

• System analysts and designers interested in managing ontology knowledge

effectively for the purposes of both analysis and design; and

• Researchers in the application of knowledge representation methods to problems in

engineering and manufacturing.

The document is divided into the following four sections and two appendices:

1. An Executive Summary, which discusses the scope and content of the ontology

capture method report and provides an initial overview of the method (Section 1);

2. A section on the conceptual foundations of ontology (Section 2);

3. A section on the ontology representation languages: a graphical language for

expressing basic ontology information and a much richer, linear language (the

“elaboration language”) for expressing detailed ontology information (Section 4);

4. A section on the IDEF5 ontology development procedure, which discusses the

application of the method for capturing and maintaining ontology information

(Section 3);

5. An appendix containing the IDEF5 relation library, consisting of a collection of

detailed characterizations of common domain relations (Appendix A); and

6. An appendix containing the formal Backus-Naur Form (BNF) for the elaboration

language (Appendix B).

The authors anticipate the use of this document for a wide variety of purposes. Thus, the

material is presented in a manner that allows readers to obtain the needed knowledge without

having to read the entire document. The following guidelines are suggested for the use of this

document.

• For an executive overview, read Sections 1 and 2.

• To become proficient in the development of accurate IDEF5 ontology descriptions,

read the entire manual, with special emphasis on Sections 3 and 4.

• An IDEF5 project leader should study Section 3 in detail, but must also have an

understanding of the method in its entirety. The introduction (Section 2) describes

the motivations and potential uses for the IDEF5 method. Section 3 describes a

procedure for developing IDEF5 ontology descriptions. Finally, Section 4 describes

the IDEF5 ontology language.

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