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Knowledge-based Information Integration |
The purpose of the IICE program was to build
the engineering foundations, Integration Definition (IDEF)
methods and tools, and migration frameworks for next-generation
engineering, manufacturing, and logistics environments. These
technologies were developed and demonstrated as part of a
large-scale process improvement effort at one of the Air Forces
largest maintenance and remanufacturing facilitiesthe
Oklahoma City Air Logistics Center (OC-ALC).
IICE program accomplishments include milestone
achievements in integration science and practice and the establishment
of a scaleable approach for evolving todays engineering,
manufacturing, and logistics enterprises toward new levels
of integration among people, information, and machines.
Specific areas of development undertaken through
the IICE program are summarized in the following list.
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Methods
to support the full range of systems development, including
analysis, design, and implementation. Specific methods support
explicit representation of the structure and logic of business
processes (IDEF3), object-oriented design (IDEF4), ontology
development (IDEF5), and business constraint capture (IDEF9). |
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Integration
tools and environments to support the design, development,
maintenance, and evolution of integrated systems. |
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Formal
theories to account for the nature of information and the theoretical
and practical limits of integration. |
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Ontologies
that explore the extent to which knowledge can be captured and
shared across domains and disciplines. |
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Application
demonstrations to establish the utility of emerging IICE technologies
and to mature them for practical use. |
Method Development
New methods developed under the IICE program represent
the most visible products of this effort. The following descriptions
provide a brief overview of the most mature methods produced under
IICE.
IDEF3--Process Description
Capture
The IDEF3 Method provides a general procedure for
successfully capturing process knowledge. This is coupled with an
expressively powerful graphical language to display the structure
and logic of a system. IDEF3 is used to document, analyze, and develop
the vital processes of an existing or proposed system. In business
environments, the IDEF3 method has several important uses.
IDEF4--Object
Oriented Design
IDEF4 was developed for component-based client/server systems and
provides a bridge between domain analysis and implementation. It
supports a smooth transition from the application domain to the
design. By specifying sufficient detail for design objects, source
code generation is enabled. The IDEF4 Method employs a multi-dimensional
approach to object-oriented software system design and consists
of: 1) design layers, 2) artifact design status, 3) design, 4) models,
5) design rationale, and 6) design features.
IDEF5--Ontology Description
Capture
An ontology is a domain vocabulary together with
a set of precise definitions, or axioms, that sufficiently constrain
the meanings of the terms in that vocabulary to enable consistent
interpretation of statements using vocabulary. IDEF5 is an ontology
description capture method that provides a structured approach for
the development of usable, highly accurate domain ontologies. Knowledge
acquisition with IDEF5 is enabled by the direct capture of assertions
about real-world objects and their interrelationships in an intuitive
and natural form. The main concepts of IDEF5 are kinds, properties,
attributes, and relations.
IDEF9--Business Systems
Constraint Discovery
IDEF9 is a method for business systems constraint
discovery. The primary focus of IDEF9 is identification of the constraints
that are operative in business systems or processes above the shop
floor. In IDEF9, a constraint is defined as a relationship that
is maintained as true in a given context. IDEF9 is used to:
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discover business practices and policies that
the business system maintains, |
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provide knowledge that will be useful in improving
processes, and |
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The IDEF9 method provides an analyst/modeler
enough leverage to seek continuous improvement systematically
by discovering, analyzing, prioritizing, and refining the
constraints. |
Application Demo: IDEF3 Process Modeling
Several specific demonstration efforts accomplished
through the IICE program are of unique significance because of their
extensive use of the methods, tools, and integration environments
developed under IICE. Following is an example of the many successes
realized through IICE.
KBSI provided training, consulting, and technical
support at the OC-ALC to apply the IDEF3 Process Description Capture
method in an ALC-wide process mapping and improvement effort. Nearly
70 individual process mapping efforts were successfully completed
using IDEF3 to document and explore improvement opportunities for
both administrative and production processes. The subject areas
explored spanned nearly every business segment of the ALC, including
workload planning, material acquisition, inventory management, shop
scheduling, manufacturing process planning, purchase order processing,
two-level avionics maintenance, engineering data management, programmed
depot maintenance, and technical order management.
Working together with Center personnel, KBSI was able
to significantly reduce costs and streamline processes by enabling
the OC-ALC personnel to blueprint and evaluate candidate process
designs electronically. Now, with over 300 Center personnel having
been trained in IDEF3 and PROCAP® and PROSIM®, KBSIs
IDEF3-based process modeling and simulation support tools, the OC-ALC
continues to use IDEF3 as its de facto standard for ongoing Continuous
Process Improvement (CPI) and Business Process Reengineering (BPR)
efforts. The demonstrated capabilities of IDEF3, the KBSI staff,
and KBSIs tools later motivated the OC-ALC to purchase a site
license for PROSIM®.
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