In this issue: Issue 131, January 2012
*Hot Topics
*Reliability Basics
*Tool Tips
*Hot News
*Contribute to HotWire

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Hot Topics
Taguchi Orthogonal Array Designs
Taguchi Orthogonal Array (OA) design is a type of general fractional factorial design. It is a highly fractional orthogonal design that is based on a design matrix proposed by Dr. Genichi Taguchi and allows you to consider a selected subset of combinations of multiple factors at multiple levels. Taguchi Orthogonal arrays are balanced to ensure that all levels of all factors are considered equally. For this reason, the factors can be evaluated independently of each other despite the fractionality of the design. This article will show how to perform a Taguchi OA design using DOE++.

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Reliability Basics
Using the Power Law Model for Data Analysis in RGA
The Power Law model is a popular method for analyzing the reliability of complex repairable systems in the field. In this article we first give a brief introduction to the Power Law model and we then give an example that shows how to use Power Law model in RGA 7 to estimate the conditional reliability of a group of systems.

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Tool Tips
  • How can I use BlockSim 7 to figure out how to achieve a system reliability goal?
  • In Weibull++ 7, is there a way to perform a quick what-if analysis on a failure model without supplying data?

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Hot News

ReliaSoft at RAMS 2012 - We will be on location in Reno, Nevada at John Ascuaga’s Nugget Hotel and Resort from January 23 - 26, 2012 to participate in the 58th Annual Reliability & Maintainability Symposium. Our team of reliability experts is looking forward to presenting the following papers, tutorials and panel discussions:

Paper Presentations

"On Planning Accelerated Life Tests for Comparing Two Product Designs"
By Huairui Guo, Pengying Niu, Adamantios Mettas and Doug Ogden, ReliaSoft Corporation

"Design of Reliable System Based on Dynamic Bayesian Networks and Genetic Algorithm"
By Dingzhou Cao, ReliaSoft Corporation, Shaobai Kan, John Jay College of Criminal Justice, CUNY and Yu Sun, Wayne State University

"Reliability Testing in Components Under Thermo Mechanical Loading"
By Julio Pulido, ReliaSoft Corporation


"Introduction to R & M Management"
By Duane Dietrich, ReliaSoft Corporation

"Lessons Learned for Effective FMEA"
By Carl Carlson, ReliaSoft Corporation

"Design of Experiments and Data Analysis"
By Huariui Guo and Adamantios Mettas, ReliaSoft Corporation

Panel Discussions

"Securing Tomorrow's Future with R&M: Using Historical Events and Data to Predict and Assure Future Performance"
Panel Member - Pantelis Vassiliou, CEO ReliaSoft Corporation

We will also be on-hand to provide you with helpful information and to demonstrate the capabilities of our complete suite of software tools (including a preview of our new Synthesis platform and our upcoming versions of Weibull++, ALTA, BlockSim, Xfmea and RCM++). So be sure to stop by our booth for a brief visit! For additional information about RAMS, including the final program, please visit

* Early Registration Deadline - ARS, Europe - The International Applied Reliability Symposium, Europe will be held from March 28 - 30, 2012 in Warsaw, Poland. You can save €100 if you sign up by February 7th, 2012. Online registration is available through For more information, please visit the website, send an e-mail to or call (+48) 22 436 67 70. The complete program matrix is also available online at
* Call for Presenters - ARS, Asia Pacific - The committee is currently soliciting presenters for the 2012 ARS, Asia Pacific, which will be held in Jakarta, Indonesia on October 16 - 18, 2012. The presentation proposal deadline is February 27, 2012. If you are interested in learning more about this opportunity and the potential to win an Excellent Presentation Award, please review the detailed instructions and milestones posted at
Upcoming Public Training Event Calendar
February 2012
February 6 - 8, 2012: RS 560 Fundamentals of Design for Reliability in Bangalore, India
February 20 - 24, 2012: MSMT Foundations in Tucson, Arizona
February 21 - 23, 2012: RS 511 Application of Reliability Growth Models in Developmental Testing and Fielded Systems in Bologna, Italy
March 2012
March 12 - 16, 2012: Effective FMEA Series (RS 470 & RS 471) in Tucson, Arizona
March 13 - 15, 2012: RS 522 Advanced System Reliability / Maintainability Analysis in Tucson, Arizona
March 19 - 21, 2012: RS 401(C) and RS 402 Life Data Analysis (Condensed) and Intro to Accelerated Testing in Penang, Malaysia
March 28 - 30, 2012: International Applied Reliability Symposium in Warsaw, Poland
April 2012
April 16 - 20, 2012: RS 540 Reliability and Maintainability Analysis for Repairable Systems in Jakarta, Indonesia
April 16 - 20, 2012: MSMT Foundations in Tucson, Arizona
April 16 - 20, 2012: MSMT Foundations in Berlin, Germany
April 24 - 26, 2012: RS 480 RCM Principles and Applications in Tucson, Arizona
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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