Graduation Year


Document Type




Degree Granting Department

Industrial Engineering

Major Professor

O. Geoffrey Okogbaa, Ph.D.

Committee Member

Tapas Das, Ph.D.

Committee Member

A.N. Rao, Ph.D.

Committee Member

Sudeep Sarkar, Ph.D.

Committee Member

Michael Weng, Ph.D.


performance evaluation, distributed systems, system redundancy, end-to-end solution modeling, event tree, application tool


This dissertation research attempts to explore efficient algorithms and engineering methodologies of analyzing the overall reliability and availability of networks integrated with software failures and hardware failures. Node failures, link failures, and software failures are concurrently and dynamically considered in networks with complex topologies. MORIN (MOdeling Reliability for Integrated Networks) method is proposed and discussed as an approach for analyzing reliability of integrated networks. A Simplified Availability Modeling Tool (SAMOT) is developed and introduced to evaluate and analyze the availability of networks consisting of software and hardware component systems with architectural redundancy. In this dissertation, relevant research efforts in analyzing network reliability and availability are reviewed and discussed, experimental data results of proposed MORIN methodology and SAMOT application are provided, and recommendations for future researches in the network reliability study are summarized as well.