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UBC Theses and Dissertations
Cnj : subtitle a visual programming environment for constraint nets Song, Fengguang
Abstract
The Constraint Nets model (CN) proves to be useful for a wide variety of purposes, ranging from intelligent agent systems, and real-time embedded systems, to integrated hybrid systems with various time structures: discrete, continuous, and time-based. This thesis describes a new visual programming environment called CNJ (Constraint Nets in Java) which utilizes component-based technology. CNJ uses JavaBeans, Bean Introspection, drag-and-drop, and Java Swing MDI (Multiple Document Interface) technologies, as well as XML-based CNML as its standard interchange format. The environment supports constraint net modeling, simulation, and animation for hybrid systems. Furthermore, it provides support for a topdown design, middle-out design, and bottom-up design where the module bean can be reused anywhere in any other CN model, saving designers time and effort. As an experiment, a hybrid dynamic elevator system is developed successfully, and test results confirm the effectiveness of the tool for hybrid system modeling and real-time simulation.
Item Metadata
Title |
Cnj : subtitle a visual programming environment for constraint nets
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2002
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Description |
The Constraint Nets model (CN) proves to be useful for a wide variety of purposes,
ranging from intelligent agent systems, and real-time embedded systems, to integrated
hybrid systems with various time structures: discrete, continuous, and time-based. This
thesis describes a new visual programming environment called CNJ (Constraint Nets in
Java) which utilizes component-based technology.
CNJ uses JavaBeans, Bean Introspection, drag-and-drop, and Java Swing MDI
(Multiple Document Interface) technologies, as well as XML-based CNML as its
standard interchange format. The environment supports constraint net modeling,
simulation, and animation for hybrid systems. Furthermore, it provides support for a topdown
design, middle-out design, and bottom-up design where the module bean can be
reused anywhere in any other CN model, saving designers time and effort. As an
experiment, a hybrid dynamic elevator system is developed successfully, and test results
confirm the effectiveness of the tool for hybrid system modeling and real-time
simulation.
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Extent |
10266835 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-09-22
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0051712
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2002-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.