In this issue:

Issue 84, February 2008

*Hot Topics
*Reliability Basics
*Tool Tips
*Latest Software Updates
*Hot News
*Contribute to HotWire

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Hot Topics

Introduction to Design of Experiments (DOE)
DOE is an essential piece of the reliability program pie. It plays an important role in Design for Reliability (DFR) programs, allowing the simultaneous investigation of the effects of various factors and thereby facilitating design optimization. This article introduces the concept of DOE. Future articles will cover more DOE fundamentals in addition to applications and discussion of DOE analyses accomplished with a soon-to-be-introduced ReliaSoft software product!

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Reliability Basics
Software Reliability Growth Modeling Using the Standard and Modified Gompertz Models
Software reliability modeling and prediction during product development is an area of reliability that is getting more focus from software developers. The use of software reliability growth models plays an important role in measuring improvements, achieving effective and efficient test/debug scheduling during the course of a software development project, determining when to release a product or estimating the number of service releases required after release to reach a reliability goal. Many new trends in software development process standardization, in addition to established ones, emphasize the need for statistical metrics in monitoring reliability and quality improvements. In this article, we investigate the standard Gompertz and modified Gompertz models and show their applications in modeling software reliability growth using RGA 6.

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Tool Tips
  • When creating a status in XFRACAS, how can I determine who the notification e-mail will go to?
  • Can I create custom reports in Xfmea/RCM++?

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Latest Software Updates
A new service release is now available for Weibull++ 7 Developer Edition (SR 7.0.2). More Software Downloads...


Application Date Created Version
Weibull++ Developer Edition    
Weibull++ 7 DE 1/30/08 7.0.2
Hot News

Accolades at RAMS 2008 - This year proved to be a great success for many engineers at the Annual Reliability and Maintainability Symposium held in Las Vegas last month. We are honored to recognize two ReliaSoft professionals for the awards they received during the week:

Alan Plait Tutorial Winner:
Carl S. Carlson, ReliaSoft Corporation
Failure Modes and Effects Analysis can be a powerful reliability tool for reducing product design and manufacturing risks, yet it often falls far short of this objective. This tutorial examined lessons learned from industry, including right and wrong to do FMEAs. Attendees learned how to achieve effective results with their individual FMEAs and how to implement an effective FMEA process.

Best Paper Award from the Society of Reliability Engineers (SRE):
Huairui Guo, PhD, ReliaSoft Corporation and Rong Pan, PhD, Arizona State University
This paper presented a methodology for constructing reliability tests for repairable systems.


Certified Reliability Professional (CRP) program - ReliaSoft's Certified Reliability Professional (CRP) program has been designed to distinguish professionals who have gained and successfully demonstrated unquestionable expertise in the field of Reliability Engineering. To achieve certification, candidates must complete a series of training courses focused on important reliability engineering topics, successfully apply the learned body of knowledge in the workplace and publicly present this expertise in an industry conference or journal. For more information, see


Industrial Engineering Professor Honored Edward A. Pohl, associate professor in industrial engineering at the University of Arkansas and co-organizer of a major ReliaSoft contribution to this engineering department, was named as the second recipient of the John L. Imhoff Chair in Industrial Engineering at a recognition ceremony on January 18th. The John L. Imhoff Chair in Industrial Engineering is used to attract and retain faculty members who share Imhoff's vision for global cooperation and understanding, excellence in teaching and research, and commitment to the success of students. Congratulations, Prof. Pohl! The official press release is located here:


ARS 2008 Sponsorship Is your company proud of its products and commitment to reliability engineering? Now is the time to let the engineering community know it. Sponsorship opportunities are currently available for both the ARS Golf Outing and the official International Applied Reliability Symposium during the week of June 16 - 20, 2008 in Reno, Nevada. Sponsorship packages include complimentary event registrations for your VIPs, targeted visibility and a cost-effective way to remind attendees that your organization is dedicated to quality and reliability. Equal opportunity is available to large and small companies alike. Send a quick message to if you are interested in benefiting your company, customers and the engineering team with this simple solution.

Upcoming Public Training Event Calendar
February 2008
February 20 - 22, 2008: RS 560 Introduction to Design for Reliability in Tucson, Arizona
February 25 - 29, 2008: MSMT Foundations in Tucson, Arizona
March 2008
March 10 - 14, 2008: MSMT Foundations in Singapore
March 17 - 19, 2008: RS 522 Advanced System Analysis in Tucson, Arizona
March 20 - 21, 2008: RS 470 FMEA/FMECA in Tucson, Arizona
March 26 - 28, 2008: International Applied Reliability Symposium in Frankfurt, Germany
March 31 - April 2, 2008: RS 521 Advanced QALT in Frankfurt, Germany
April 2008
April 14 - 15, 2008: RS 480 Reliability Centered Maintenance in Warsaw, Poland
April 17 - 18, 2008: International Applied Reliability Symposium in Chennai, India
April 21 - 25, 2008: MSMT Foundations in Tucson, Arizona
April 23 - 25, 2008: RS 521 Advanced QALT in Singapore
Contribute to HotWire
Contributions Welcomed
As always, your feedback and contributions are appreciated. ReliaSoft is able to provide the most user-friendly reliability software packages and support because we listen to our customers. This applies to our newsletters and publications as well. We welcome any suggestions or contributions you may have for Reliability HotWire. If you have a topic or article that you think would be useful to the readers of Reliability HotWire, feel free to contact us.

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