Title page for ETD etd-3025191349721321

Type of Document Master's Thesis
Author Veith, Tamie Lynne
URN etd-3025191349721321
Title Netsim: A Java(TM) -Based WWW Simulation Package
Degree Master of Science
Department Industrial and Systems Engineering
Advisory Committee
Advisor Name Title
Schmidt, J. William
Kobza, John E. Committee Co-Chair
Koelling, Charles Patrick Committee Co-Chair
  • programming
  • netsim
  • modeling
  • java
  • internet
  • simulation
  • WWW
Date of Defense 1997-04-29
Availability unrestricted
Use of the World Wide Web (WWW) for transfer of information and ideas is

increasingly popular. Java, a programming language for the WWW, provides a

simple method of distributing platform-independent, executable programs over

the WWW. Such programs allow the expansion of WWW-based computational

and analytical tools that support and enhance the existing WWW environment.

However, a WWW-based, generalized simulation package is not yet available.

Current literature motivates development of a general, WWW-based simulation

package with maximum user interactivity and cross-platform capabilities.

Advantages of such a package are discussed and explored in three potential

applications. Main advantages are wide availability, controlled access, efficient

maintenance, and increased integration. Disadvantages, such as variable download

times, are also discussed. Netsim, a general, WWW-based simulation package

written entirely in Java, is developed and demonstrated. Netsim provides

complete model creation and modification capabilities along with graphical

animation and data output. Netsim uses the event graph paradigm and

object-oriented programming. Java, event graphs and object-oriented

programming are discussed briefly. The Java random number generator is

verified for uniformity and independence. Netsim is compared to SIGMA, a

non-Internet simulation package, using a standard M/M/1 queueing model.

Comparison issues and results are discussed. Additionally, tested through

hand-tracing for coding validity, Netsim performs as theory prescribes. Netsim

documentation and user's manual are included. Netsim allows expandability for

complex modeling and integration with other Java-based programs, such as

graphing and analysis packages. Current Netsim limitations and potential

customization and expansion issues are explored. Future work in WWW-based

simulation is suggested

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